A woman is showering, with some hot water. Slide to a guy brushing his teeth. The water coming from his faucet turns into bloody red water, as does the shower water of the one woman. We see a woman floating in water blood seeping. Mac is checking down the water tower and sees the woman's dead body. He climbs down and Flack finds him with information on the victim's name: Stacie Avida. She didn't live there, but she did work there: As a doorwoman. The super said everyone seemed to like her, and he even dated her about a year and a half. Lindsay is checking out the water running from the tower commenting how they don't have those in Montana. Flack says how since NY's water quality is a bit dismal; every building over 16 floors has one. Flack says that every tenant in the building has access to the roof and Lindsay comments how there have been 6 suspicious deaths in that building in 10 years. Lindsay knows this because she took a gray line tour which had showed all the famous deaths and many murders in Manhattan. That building was stop #8.
Mac and Lindsay are taking pictures of the scene- Mac is on the body, while Lindsay is working on the area outside of the water tower and the water tower itself. Mac finds glass trace in the vic, and Lindsay find a shoe impression.
Sid is with Mac and explains that despite the amount of blood on the scene, CoD was not exsanguinations. What really killed her was the water- she drowned meaning she was alive when she was dropped in the water tower. Mac thinks that it's difficult to take a woman up the water tank unless he's unconscious. And Sid agrees. There was a puncture wound on her chest, so Sid sent her blood to tox. He also found a semen sample, though diluted, still there. He sent it off to DNA. Sid quotes a line from Macbeth, and Mac catches it. The directional of the incisions on her arms shows a sawing motion, and Sid says it must've been a mess. But there wasn't a drop inside the water tank or out. No spray, no blood trail. "How is that possible?"
Stella and Hawkes are on the scene of a dead kid with his neck chained to a post. CoD looks to be strangulation. Stella finds his wallet and phone, Ben Hatfield- he works as a field consultant. They all say they didn't see anything. It seems to have started out as a playground fight. Stella notes blood on the sandbox. The blood is still wet- he was two fights. In the lab, Stella and Hawkes are checking out the blood from the chain and the sand box. Hawkes is also checking out the shirt, and there is a glove print on it. Meanwhile Stella is checking out the images on his phone. They all seem to be some different forms of body jewelry. Danny walks in on Stella and he joins the case. The photos are all candid; she doesn't realize she was photographed. Stella sees a guy who looks like he could be the girl's boyfriend. Danny notes they all look to be around the same street, and he sees a bus stop, George Washington bridge.
Stella finds the girl and asks her about the photos. She is freaked out that someone has been photographing her, and when asked about the guy she says she didn't know him just some guy who wanted to buy her coffee. Stella says next time she sees him to get a name, since he could be a murderer and when that happens, to give Stella a call. Stella notes something in her mind as the girl is leaving.
In the lab, Hawkes finds Stella and tells her the epithelial DNA came back as everyone. The blood is the vic's and the imprint came back as tar and NYC dirt. The blood in the sandbox is an unknown male. However she tells Hawkes she thinks the girl was lying. She also found out that he wasn't stalking Jennifer Rodriguez; he was working, since he was a trend reporter- he was to find "the next hot thing." It's called "cool hunting."
Mac is with Lindsay and she tells him how all the people that have died in that building did so under mysterious circumstances. Mac is worried she believes in the curse. In the apt, Lindsay found flowers from the roof, blood on the doorframe and a used condom. Semen in the condom matched that found in the vic, and the blood on the door didn't match the semen but a male donor which also matched mucus on the flower. The boyfriend didn't have a cold but he was allergic to flowers (the mucus on the flowers are probably from him) but then who is the semen from?
Mac interviews the super, her boyfriend who claims they were doing great and they were thinking of moving in together. Mac tells him about evidence of another man in the apartment and replays a scenario of the bf bringing in flowers to her, and then seeing the condom and getting pushed out the door, hand getting caught there. He also asks about the daughter, which they found evidence of (a kid's room there with pictures of Gina and Mommy). And Mac says how he didn't know she was cheating or that she had a daughter. Apparently he was played. The boyfriend is very upset.
Stella and Danny are checking out the pictures again. They see a story forming behind their eyes, guy flirts with girl, guy shows girl "pimped out ride." But they can never find the boy. Danny uses flipping and sharpening on the photo software to find the car's license plate number.
Mac comes in to the lab to find Lindsay working on evidence. Tox came back, "Stacie was injected with 10 times the therapeutic dose of prescription grade morphine." Damn. Linds was checking out the glass, which is water glass and 85% of it is usually stained glass windows. There was stained glass on every floor of the building. So they head to the building and check out the windows. Mac finds something and calls Lindsay over- the one panel is darker- and it's the only color that matches the one from the vic. They glance at who the place is, a Craig Zimmer MD.
Danny and Stella find the owner of the car and it's a business man. He says the car is his company car, and the man who drives it is an Elliott Stanton. Apparently it's his best employee. Apparently the car owner's company is a rival business of the one Hatfield worked for. He claims he was already killing the competition by knowing everything before them. So he didn't need to kill the guy. He says he is ahead of the game. When asked how Jenny fits into all of this, he looks shocked. Stella reminds him it's the girl in the picture then how "guess when you steal her design you don't need to know a name."
He "finds" Jenny's clothes styles and turns them into expensive clothes. He goes to leave and they ask where Stanton is.
So they head to Washington Heights. They see Stanton drive past and see him get out. he has a bruise on his face. They walk p to him and show the picture of the dead guy. Danny notices the bruising and cuts. He claims he fell off his bike. He takes a picture of the wounds. They leave.
Mac and Lindsay are in Zimmer's house, Lindsay peels off the backing of the glass pane that was the odd one out. Mac goes to check out the house, but the doctor stops him telling Mac that now is not a good time, and giving a bunch of reasons about him being on his feet for 36 hours. Mac tells him to stop impeding his investigation, Lindsay glances over. The doctor lets Mac get going and he eyes Mac carefully. Mac checks out the closet, while Lindsay notes the broken glass and sees blood on it. Mac finds shoes with sand on the bottoms and Lindsay notes a picture frame with a light colored hair. She gets finger prints from it and lifts it. Mac notes a box with morphine in it. Lindsay comes over and sees the morphine. She tells him about the blood. It all seems to be adding up except why.
Hawkes is with Sid, and they are going over an x-ray of Hatfield. They see his tooth in his stomach, and figure he must've swallowed it during one of the fights. Sid also found some other trace and brought it over to him. Hawkes heads to the lab and analyzes the post of tooth Sid gave him from the vic. It's got reptile skin.
Stella is with Danny and she is upset about how they have a prime suspect without enough evidence to hold up in court. But Danny is showing pictures of Jenny with Stanton, Stanton wearing gloves, then the picture of the shirt with a mark left by gloved hands. The wounds on Elliot's hands match the wounds on Hatfield, but Stella says that only proves they got in a fight but not with each other. They need to prove it was Elliot's everything involved in that fight.
Danny heads to the park where Hatfield was murdered, and sees a handball player. He takes on the winner who says him and his cops should head to the UES. Danny says that this is a crime scene and sounds angry when he tells to the onlookers how it was only this morning and no one saw anything. Then he challenges the handball player to a game, saying that if he, the player, won, Danny and the cops would leave and he could say he beat a cop, but if Danny won, he would answer some questions. The player takes up the challenge. So they start to play and lots of people are watching. Danny puts on a glove and competes pretty well with him. The score seems to be even but then Danny wins (we think?)
Next we see Danny in the lab he is comparing the globes he wore at the handball tournament to a white shirt. Then he compares results. It definitely was a handball player.
Flack is with Lindsay and they have Dr. Zimmer in the questioning room. Zimmer is a junkie, he is addicted to morphine. Lindsay mentions the 6 mysterious cases; he says its stupid superstition. But she mentions that in three of the cases, his name is mentioned. One of which is a nanny with whom he was having an affair with. And Lindsay replies that stupid superstition looks a lot like pattern. Zimmer says how he came down here voluntarily to answer questions. They show the door woman's photo. Apparently Zimmer called her regularly. He says he's never talked to her but Lindsay says that the semen in her body matches him. His face pales. And he is surprised. He is shocked. The glass from the apartment matches hers. Everything adds up. And it seems to be a relationship. He says how he's been at the hospital for a day and a half and has people to back him up. The two detectives leave him there. Lindsay is talking to Mac afterwards and saying how his behavior makes no sense. She doesn't see why he didn't toss the shoes. He also didn't call a lawyer. Then he brings up Sophia, the nanny. She was raped and died. Then there was another incident where he tried saving a woman from choking but failed. Also on the roof. Lindsay suggests maybe he is cursed since things happen when he is around that are bad. Mac says there has to be science to it. Mac gets a call, they need science that puts Zimmer on the roof or he's free to go.
Hawkes comes up and tells Danny what he found- the reptile skin. Danny tells Hawkes of the match with the glove. But Hawkes says how it can be any one on the handball court. And Danny says his three victories got him something else. An eye witness that saw Stanton and Hatfield going at it. They bring in Stanton and get DNA evidence and trace from under his fingers. He looks upset. Hawkes analyzes it.
Danny and Lindsay are checking out Zimmer's shoes. The dirt is identical to the roof garden but he could have been there. They need something that proves she was there. The hair in the apartment is consistent with hers, but they need more. So they check out the print she lifted. They analyze it to find out when the frame was last handled- but that was 28 days ago. It was not used in the murder which leaves Lindsay begging the question, how did her hair get in the frame? So they think of who else had access to his apartment. The super- and they are thinking maybe he is trying to frame Zimmer.
Lindsay is back at the apartment building and she brought along Danny to help her recreate the circumstances. The thing she finds odd is that the shoes were half an inch deeper in the heel than in the toe. So she wants to test it out. she has Danny carry her in the ground to check it out since the weigh similar of the people. They add an extra weight to even things out. so he carries her and they check out the prints. Lindsay photographs them and uploads them to the computer. In the lab Mac asks what she has and she says that "The ones from the roof are an inch shallower than those Danny and she made." Mac checks out the plaster remakes of earlier. Someone else was wearing his shoes. They check inside his shoes and see a teal color strand. The vic was wearing teal socks. But why would she be wearing his shoes?
Stella is with Flack and Stanton, saying the cut came from someone's mouth. And the gloves match the pattern. The lawyer is saying it could be anyone. And Stella says how they microscopically match. She says he hit him and he says he didn't kill him. Ben was honing on his turf. Stella's theory is that Ben beat him the first time so he went a second time and strangled him. But Stanton wants to continue talking. The lawyer was hired by the employer. He claims Elliot doesn't know what's best for him. So he leads him out.
Lindsay is checking out the newspaper clippings of the murders in the building. Mac comes and she says she grabbed all the case evidence from the previous murders. Everything is connected she says so it has to be here. She also has living records of the door woman before she died. The girl who choked on the rooftop is named Gina the two have alleles in common 1 allele in each 13 loci. They were mother and daughter. She died on the roof four years ago. Dr. Zimmer had two previous complains for practicing under the influence. He killed her because he overcompensated since he was on drugs and he fractured her rib cage which punctured her heart. Then they check out Stacie's hair. She worked in publishing until 2 months after her daughter died which was when she became a door woman. She wanted total access.
Hawkes is in the lab. Stella comes in saying they won't get any more from Stanton because of the lawyer. They got him in the fight in the sandbox but they need him at the strangulation. Hawkes says that the fight in the sandbox happened the same time as the strangulation since the vic still had sand in his eyes. And Stella figures since all they found in the sand was Elliot's blood they need a reference sample.
So they find a special allele in the sand which is ethnically specific. 90% of the people from half an island- the Dominican Republic. And since they know someone from there who likes wearing leather Stella says, "the very trendy Rico Cerda" also, Hatfield's competition.
Rico is getting a vitamin drink at a deli. Stella and Danny walk up behind him. They talk to him about murdering Ben. He says that's ridiculous. Stella tells him about the trend of killers denying they did it. Danny talks about the watch and part of it getting stuck in Hatfield's mouth. Rico killed Ben. They also found his blood at the crime scene. Rico said Hatfield and his company didn't belong here. Since it was his neighborhood. But they mention how he sold out his neighborhood, and his people.
Mac is talking to the super boyfriend (super as in superintendent not as in superman), and telling him how she planted the evidence. They bring up to Zimmer the evidence they had. She learned his habits and studied him. Flack and Mac talk to both men. Lindsay recreates the scene with walking just by herself. The prints match. She puts the drug in her system so it would lead back to him. Then she shoved her arm in her hand and walked out the building to set him up. Lindsay is climbing up and looking down, then climbs down and looks up, imagining the suicide of her. She made it look like murder to frame him. Zimmer says thank you, but Flack put a call in to the medical board about his drug addiction. The super says it doesn't matter she used him, he still loved her. He asks if that makes him a chump, and Mac tells him no. they shake hands and Mr. Green, the super gets in a cab and leaves. Mac watches him go.





