Body Double (1984)

Brian De Palma invites you to witness a seduction...a mystery... a murder. It's Body Double a spine-tingling look at voyeurism and sexuality from the modern master of suspense. Jake Scully (Craig Wasson), an unemployed actor, is asked to house-sit at a luxurious hillside apartment. As a bonus, the home offers Jake a telescopic peek into the bedroom of Gloria Revelle (Deborah Shelton), who performs an arousing striptease. When Jake discovers another man is also spying on Gloria, he begins an obsessive surveillance of her. Soon a grisly murder leads him into the world of X-rated films where he meets sexy porn queen Holly Body (Melanie Griffith), who is a key to the crime.