12/05/2012 10:11 am ET Updated Dec 06, 2017

Patricia Arquette On 'Law And Order: SVU': 'Medium' Star Guests In 'Dreams Deferred' (VIDEO)

Patricia Arquette could be the key to stopping a murderer on this week's "Law & Order: SVU."

In HuffPost TV's exclusive sneak peek below, Arquette's character, Jeannie, a prostitute, is questioned by Detectives Benson (Mariska Hargitay) and Amaro (Danny Pino) after one of her regular Johns snaps. It seems Jeannie and Benson have a history together.

Here's how NBC describes the episode:

When a man goes on a killing rampage through New York, the lead FBI agent (guest star Jason Gedrick) calls upon the SVU to get information from the suspect’s last known contact – a prostitute (guest star Patricia Arquette) who had been involved in one of Benson’s (Hargitay) old cases. As the detectives work with her to track down the killer, they find themselves drawn into her world and must fight to save her life. Also starring Ice-T (Detective Odafin Tutuola), Dann Florek (Captain Donald Cragen), Danny Pino (Detective Nick Amaro) and Kelli Giddish (Detective Amanda Rollins.) Also guest starring Anne Mera, Gbenga Akinnagbe and P.J. Brown.

"Law & Order: SVU" airs Wednesdays at 9 p.m. EST on NBC.

'Law and Order: SVU'