A baby is found dead when two members of the Center of Disease Control are testing sewers for mosquitos. The Detectives of the Special Victims Unit immediately suspect the mother. They then find the mother, named Brianna Morris, they realizes that she was unable to have committed the murder, because she was a victim herself. Someone forced her into labor and took the baby from her. Throughout the investigation, they find that a man named, is paying for Brianna's OBGYN. First they suspect that he was a victim of identity theft, but quickly realize that Brianna was going to be giving her baby to him and his wife once it was born. But what the Detectives can't understand is how a couple so desperate to have a child would endanger their soon to be offspring. They find that Brianna was in the process of finding the baby's biological father. When Benson and Stabler find him, and he offers a DNA sample, they open up a cold case that they thought they would have never solved.
This was a great episode. This is the first episode with the new ADA, Casey Novak. She begins her career in Special Victims by pushing the buttons of both Benson and Stabler, and then thinks that she might not be cut out to deal with the nature of the cases in the unit.