Quelqu'un derrière la porte
- Godina: 1971
- Country: France
- Žanr: Thriller, Crime, Drama
- Studio: SNC, Comacico, Lira Films
- Ključna riječ: infidelity, amnesia
- Direktor: Nicolas Gessner
- Uloge: Charles Bronson, Anthony Perkins, Jill Ireland, Henri Garcin, Agathe Natanson, André Penvern