France / Jul 28, 1971
Overall average
5.0/10
Trailer

Videos
Plot
A neurosurgeon with a cheating wife takes an amnesiac into his home and conditions him to believe that the cheating wife is his own and to take the "appropriate" action.
Main cast
Full cast
| Actor | Role |
|---|---|
| Carl Studer | Fisherman (as Carl J. Studer) |
| Silvana Blasi | Mrs. Evans |
| Adriano Magistretti | Andrew |
| Viviane Everly | Young Girl on Beach |
| Isabelle Del Rio | Nurse |
| Colin Mann | Sgt. Gordon |
| Yves Elliot | Policeman |
Genres
ThrillerCrimeDrama
Technical details
| Detail | Value |
|---|---|
| Original title | Quelqu'un derrière la porte |
| Original language | English (EN) |
| Spoken languages | Français, English |
| Production countries | France, Italy |
| Status | Released |
| Production companies | SNC, Comacico, Lira Films |
| Release date | 28 luglio 1971 |
| Production | Maurice Jacquin, Raymond Danon, Nicolas Gessner |
| Writer | Jacques Robert, Lorenzo Ventavoli, Nicolas Gessner, Marc Behm |
| Editing | Victoria Mercanton |
| Cinematography | Pierre Lhomme, Gilbert Duhalde, Guy Testa-Rossa, Raymond Voinquel |
| Assistant directors | Nicolas Gessner, Alice Ziller |
| Camera operators | Gilbert Duhalde, Pierre Lhomme, Guy Testa-Rossa, Raymond Voinquel |
| Additional photography | Pierre Lhomme, Gilbert Duhalde, Guy Testa-Rossa, Raymond Voinquel |
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| Production design | Jean d'Eaubonne |
| Art direction | Jean d'Eaubonne |
| Set decoration | Jean d'Eaubonne |
| Music | Georges Garvarentz |
| Sound | Georges Garvarentz |
Release dates
Theatrical release
Switzerland / Sep 06, 1971 / 16
United States / Dec 08, 1971
Physical media
Germany / Dec 08, 2022 / 16
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