A promising young cellist named Cassie Germaine is brutally assaulted in her home after being dropped off by her boyfriend. Her clothes are torn off, and there are signs that she had been raped--as well a further indignity having been visited on her: Cassie’s assailant wrote "whore" across her chest in lipstick. When the SVU team arrive, they discover something else that’s highly unusual; there are several hidden cameras located all over Cassie’s apartment. With the images being sent out via wireless radio transmitter to any located within a 300 yard radius, Cassie’s high tech Peeping Tom could be anywhere. Olivia informs Cassie at the hospital that the rape evidence is inconclusive--but while they’re not sure whether or not she had been raped while knocked out, Cassie’s attack was sexually motivated.

Elliot questions the boyfriend, who tells him that Cassie has been bothered recently by Robert Prescott, the conductor of the symphony she plays in. Although Cassie has made it clear that she’s not interested in him, he’s the sort who won’t take no for an answer. And, more interestingly, Prescott also owns the building where Cassie lives. He set Cassie up in the same apartment where a former violinist lived, another promising young talent whom Prescott reportedly couldn’t keep his hands off of. After discovering that Prescott has a penchant for videotaping his sexual conquests, the SVU detectives get a warrant to search his home while he’s out of town. Yet when they look through Prescott’s home-made porno tapes, they find a video containing a completely willing Cassie making whoopee with the maestro.

Surveillance is an entertaining, well-done mystery with plenty of plausible twists that keeps you guessing throughout the episode. It’s also an episode that utilizes the entire SVU cast to great effect--with everybody getting their fair share of screen time, you really get the sense that the entire squad is working together as a cohesive team to solve this increasingly puzzling mystery before the next attack on Cassie winds up being a fatal one. Even the guest cast is very good, especially Emily Deschanel as Cassie. The daughter of cinematographer Caleb Deschanel (The Black Stallion; The Passion Of The Christ), and the sister of Zooey Deschanel (The Hitchhiker's Guide To The Galaxy), Emily has appeared in The Boogeyman (2005) and Stephen King's Rose Red. But she's perhaps best known these days for her lead role as Dr. Temperance 'Bones' Brennan in another crime series, Bones, which airs on FOX.