Benson and Stabler investigate the case of a woman (Cynthia Nixon) with multiple personalities who may have abused and killed her daughter; the detectives must adjust to sweeping changes in the SVU.

When a video gamer goes missing, Benson and Stabler use the woman's avatar to track down her kidnapper before it is too late.

A 15-year-old with a sexually transmitted disease says he caught it from his teacher (Melissa Joan Hart); Benson and Stabler uncover dark secrets while searching into the pair's lives.

The only witness to the beating of a woman (Judy Kuhn) is her daughter (Paulina Gerzon) who has Williams syndrome.

Detectives link the stabbing death of a schoolteacher to her volunteer job at a victims rehabilitation center, where she was working with an Iraqi who helped uncover some military secrets.

When a collegian is found dead in her formalwear, detectives recognize the body's mutilation as that of the copycat of a serial killer; a woman goes missing, and comic books are the key to finding her.

Detectives discover a kidnapped girl in the trunk of a stolen rental car; the suspect's rage seriously injures Stabler; the trial forces Novak to face dark things in her past.

The death of a young girl appears to link to the world of ultimate fighting, and tensions rise within the department when two brothers (Gaius Charles, Arlen Escarpeta) are charged with the crime.

A nanny's Internet love interest (Steven Bauer) is the obvious suspect when she is found murdered, but detectives look more closely at her employers (Mark Valley, Anastasia Griffith) when skeletons are found in their closet.

When a polygamist's wife is murdered, he fears his testimony in a separate case may have led to her death; a Web site exposes potential witnesses.