| Release Date | 01 August 1976 |
| Budget | $1,000,000 |
| Tagline | The love story that will scare the life out of you |
| Genre | Drama, Mystery, Thriller |
| Country | USA |
| Filming Locations | Basilica di San Miniato al Monte, Florence, Tuscany, Italy |
| Language | English |
| Sound Mix | Mono |
| Color | Color |
| Film Type | Feature |
| Film Class | Psychological Thriller |
| Mood | Spellbinders, In a Minor Key |
| Themes | Haunted By the Past, Twins and Lookalikes, Dangerous Attraction |
| Tones | Eerie, Enigmatic, Ominous, Dreamlike |
| Tags | Death, Kidnap, Loneliness, Lookalike, Mistaken Identity, Obsession, Sea Monster, Vacation, Widow/widower |
Obsession is a 1976 psychological thriller/mystery directed by Brian De Palma, starring Cliff Robertson, Geneviève Bujold, and John Lithgow. The screenplay was by Paul Schrader, from a story by De Palma and Schrader. Bernard Herrmann provided the film's soundtrack. The story is about a New Orleans businessman who is haunted by guilt following the death of his wife and daughter during a kidnapping-rescue attempt. Years after the tragedy, he meets and falls in love with a young woman who is the exact look-alike of his long dead wife.