Detectives Benson and Stabler must track down a pregnant rape victim named Sofia who disappears from the hospital. In the process, they uncover a vast Bulgarian baby-trafficking scam, led by Anton Petrov (Pasha D. Lychnikoff). When the woman who housed the pregnant mothers, Lili Denkova, is discovered murdered, Benson and Stabler go undercover as infertile parents in order to uncover Petrov's scam, while ADA Marlowe clashes with Cragen over methods to protect Sofia and her newborn child. Flossy, the person who lives in his car in City Hall is played by Kevin Corrigan. Dr. Stephen Elroy is played by David Paymer.