Ep 8. Cry Wolf

Two women are killed in Central Park, and the detectives initially believe that serial rapist/murderer William Lewis (guest star Pablo Schreiber) has struck again. However, Lewis provides an alibi, leading the detectives to suspect that the murders are the work of a copycat. Meanwhile, Olivia Benson (Mariska Hargitay) begins to receive phone calls from someone claiming to be Lewis, causing her to fear for her safety and that of her son Noah. As the investigation continues, the detectives begin to uncover a web of lies and deceit that leads them to a surprising suspect.