When the body of Gretchen Quinn is found wearing only a red slip after having gone through an upper-storey window, Benson and Stabler soon find out that 'Gretchen Quinn' has never existed. While trying to piece together her life, the detectives are led to Gretchen's psychiatrist and a well-known television newscaster, both of whom were sleeping with her, and finally trace Gretchen back to a young woman who changed her name and identity after graduating high school to get away from her sexually abusive father. Don Cragen finds it easy to identify with the young woman, as he has ghosts of his own to escape from.

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