Law & Order: Special Victims Unit - Season 6 - Eps 12: Identity
Complications ensue in the investigation of a Stone Cold Assassins gangbanger who fell off a building after the victim that he tried to rape bit him in self-defense when the vic's twin sister cops to the crime, seemingly impossible due to the evidence until the secrets regarding the sister's true genetic identity are revealed.
About Law & Order: Special Victims Unit

Title: Law & Order: Special Victims Unit
First Air Date: 1999-09-20
Last Air Date: 2025-10-02
Status: Returning Series
Rating: 7.94/10 (from 4028 votes)
Language: EN
Seasons: 28
Total Episodes: 579
Network: NBC
Genres: Crime, Drama, Mystery
Production Companies: Wolf Entertainment, Universal Television, Studios USA, Universal Media Studios
Synopsis
In the criminal justice system, sexually-based offenses are considered especially heinous. In New York City, the dedicated detectives who investigate these vicious felonies are members of an elite squad known as the Special Victims Unit. These are their stories.
Cast

Mariska Hargitay
Olivia Benson

Ice-T
Odafin 'Fin' Tutuola

Kelli Giddish
Amanda Rollins

Peter Scanavino
Dominick 'Sonny' Carisi Jr.

Aimé Donna Kelly
Renee Curry

Kevin Kane
Terry Bruno