After making a seemingly routine arrest of a man exposing himself in Central Park, Detective Rollins has a bad feeling about the suspect and calls upon the entire SVU squad and ADA Barba to help. With no way to discover the suspect's true identity, he masterfully outplays them at every turn. A shocking theory comes to light, and as Barba's trial comes to a close, the situation rapidly escalates and Detective Benson is put into mortal danger.