108 mins | Thriller, Horror, Mystery | Aug. 15, 1969
108 mins | Thriller, Horror, Mystery | Aug. 15, 1969
| IMDb rating | 6.6 |
| Producers | Les Productions Jacques Roitfeld, Empire Films, Trébol Films C.C. |
| Original title | Una sull'altra |
| Directors | Vittoria Vigorelli, Albino Cocco, Massimo Castellani, Lucio Fulci |
| Writers | José Luis Martínez Mollá, Roberto Gianviti, Lucio Fulci |
as Dr. George Dumurrier
as Susan Dumurrier / Monica Weston
as Jane Bleeker
as Henry Dumurrier
as Inspector Wald
as Benjamin Wormser
as Officer Loveday
as Insurance Agent
as Brent
as Royal Insurance Official
as Sergeant Rodriguez
as Arthur Mitchell
as Larry
as Marta
as Graphologist
as Elizabeth O'Neill
as District Attorney
as Governor
as Prison Guard