Goof: Once Carol has been strangled, you can still see her breathing as the elevator doors begin to close.
Bosley: You know while we're there. I can have myself analyzed. I'm finding it pretty rough adjusting to being a janitor.
Kris: (putting her arm around Bosley) That's okay, Bos.
Kelly: Poor little thing.
Sabrina: (looking at the photos) Wait a minute.
Kelly: What's wrong, Bree?
Sabrina: Well you notice anything about these two girls who were killed.
Kris: What are you getting at Bree?
Sabrina: Well, they're, they're both blonds and so is Bonnie.
Kelly: Well half the girls in America are blonds or trying to be.
Carol: Say, are any of you free in about and hour.
Kris: (Taking off her sunglasses) Uh, well that depends.
Carol: Well, I've got these two clients and they are dying for a party. Bonnie's busy (Kelly and Sabrina look at each other) and nobody's available.
Kris: Oh, gosh. You know the plane ride was really wild. I'm a little tired and a little shook up.
Sabrina: I have a... I have a bad back. (touching her back) I'm suppose to stay off my or on my feet. I'm suppose to stay on my feet.
Carol: What about you, Kelly?
Sabrina: (clearing her throat) Ahem. (touching her nose)
Kelly: Oh uh I.. I have a cold. Achoo.
Charlie: Now Angels, I've made arrangements for you to take up residence in Mrs. Smith's building and go under cover as three of her working girls.
Charlie: In name only Sabrina.
Kris: (Patting her chest) Hopefully.
Sabrina: Mrs. Smith. Are the other three girls prostitutes?
Mrs. Dolly Smith: I prefer to call them working girls.
This episode features perhaps the most unusual chase sequence since the famous "skateboard show," Consenting Adults - the Angels mount ten-speed bicycles to race down the killer. Cheryl Ladd was "the Little Rebel" of Charlie's Angels because she wasn't afraid to speak out when it came to "inappropriate clothes for certain scenes." Though she knew wearing bikinis was occasionally part of the job, she did do so only if the scene took place at the beach, near a pool or on a boat.
Dr. Eggers: Well, the fact that the victims were all blond prostitutes indicates that we're possibly dealing with a Jack the Ripper personality.
This quote refers to "Jack the Ripper," which was the popular name given to a serial killer who killed a number of prostitutes in the East End of London in 1888. The name originates from a letter written by someone who claimed to be the killer that was published at the time of the murders. The Ripper seized the women by their throats and strangled them until they were unconscious, if not dead and then cut the throats when they were on the ground.