When the body of a fourteen-year-old girl is found floating in the Hudson River, Detectives Olivia Benson and Elliot Stabler think she was smuggled into the country by sex traffickers. To identify the body, Detective Benson goes undercover as a Madame and busts sex trafficker Alik. When Alik makes a deal with ADA Kim Greylek he identifies the body as Elsa Lychkoff. To the detectives' surprise, Elsa wasn't a prostitute, but a child prodigy. Prying more into the victim's secret life, the detectives investigate her elite boarding school and her roommate Jennifer Banks, who in turn, leads them to compulsive gambler, Joseph Lychkoff, Elsa's father. When the motive of Joseph seems obvious as to why he would kill his daughter, Detective Odafin Tutuola discovers some new evidence that could change the entire case.

When a man is found badly beaten with no memory of what happened in a strip club parking lot, Detectives Olivia Benson and Elliot Stabler are at a loss for evidence as a rainstorm washed away any clues. A fake fingernail embedded in the victim's back leads the detectives to believe that the attacker is female. Detective Benson and Stabler turn to the female dancers at the club for questioning, but a homeless man, Sid Gabbert, points the detectives to the victim's truck. Using evidence found in the truck, the detectives learn that the victim, Mark Van Kuren, was sent to repossess the car of strip club dancer, Molly "Misty" Lambert. After questioning "Misty," Van Kuren awakes in the hospital with no memory, but brings the attention to his ex-wife Ellen and their 13-year-old transgender son Henry.