A psychiatrist specialising in the treatment of sex offenders is found badly beaten and sexually assaulted in a drug den and one of her recently paroled patients, the Duct Tape Rapist, is the prime suspect.
Stabler and Beck look into the suspected assault and murder of a mother and her 10-year-old daughter.
A distraught pregnant woman claims her child is a product of rape and threatens suicide, but the detectives become suspicious when the woman appears willing to settle for cash at the trial.
A video voyeur catches a sexual assault against a minor on tape, which changes the focus of the investigation as the detectives search for a paedophile.
The detectives believe that an actress seduced her stepson when her corporate mogul husband is found murdered.