Obsession is a 1976 American neo-noir psychological thriller film directed by Brian De Palma, starring Cliff Robertson, Geneviève Bujold, and John Lithgow. The screenplay was written by Paul Schrader, from a story by De Palma and Schrader. Bernard Herrmann provided the film's soundtrack before his death in 1975. The story is about a prominent New Orleans businessman who is haunted by guilt following the death of his wife and daughter during a kidnapping-rescue attempt gone wrong. Years later, he meets and falls in love with a young woman who is the exact look-alike of his long dead wife.

Brian Russell De Palma is an American film director and screenwriter. With a career spanning over 50 years, he is best known for work in the suspense, crime and psychological thriller genres. His films include mainstream box office hits such as Carrie (1976), Dressed to Kill (1980), Scarface (1983), The Untouchables (1987), and Mission: Impossible (1996), as well as cult favorites such as Sisters (1972), Phantom of the Paradise (1974), Blow Out (1981), Body Double (1984), Casualties of War (1989), and Carlito's Way (1993).