An underage escort is found dead at a wild bachelor party, and Captain Cragen (Dann Florek) cautions his team to investigate with discretion, as there were several high-profile people at the scene. In their efforts to question a well-known leader in the New York escort world (guest star Peter Jacobson), Benson (Mariska Hargitay) and Amaro (Danny Pino) encounter former SVU detective Brian Cassidy (Dean Winters), who's been working undercover. watch