Impulse (1990 film)

Impulse is a 1990 thriller film about a female police officer who works undercover as a prostitute on the streets of Los Angeles. The film was directed by Sondra Locke, and stars Theresa Russell, Jeff Fahey, and George Dzundza.

Forced by the department to see a psychiatrist, Mason reveals fantasies about the pleasures of losing control. She has begun a romantic relationship with a dependable district attorney named Stan Harris, but seems to yearn for a more thrilling experience.Mason goes undercover in Hollywood as a prostitute, dressing provocatively and living dangerously. After a dangerous undercover operation, Lottie goes to a bar where she meets a man who offers her a large sum of money to go back to his house. The man, it turns out, is a mob boss under investigation by the Stan Harris. ........

Source: Wikipedia