Impulse

Impulse is a 1990 American neo-noir film directed by Sondra Locke, starring Theresa Russell as Lottie Mason, a female police officer who works undercover as a sex worker in Los Angeles. Lottie becomes embroiled in a murder investigation and must navigate her personal relationships and career problems while being pursued by her superior, Lieutenant Joe Morgan. The film follows Lottie's attempts to clear her name and uncover the truth behind a complex web of deceit and murder.