Law & Order: Special Victims Unit - Season 7 Episode 15
Manipulated

After the body of Vicky Riggs is found, Benson and Stabler delve into her private life and finally learn that in addition to being a respected lawyer, she was also a stripper. A surveillance photo leads them to Linus McKellen, her boss husband, who was also having an affair with her. There isnt enough evidence to prove he murdered Vicky, but when Vickys co-worker at the club, Josie Post, is also found murdered, DNA proves that McKellens semen was found in her body, despite his disabled wife Tessas conviction that he would never murder anyone. Suspicion turns on Tessa herself once the detectives interview the only man who seems capable of having committed the murders.