Police Comissioner Datti is investigating the murder of a female doctor whose murderer seems to be a thirty-fivish year old man. Soon another murder follows: Pianist Robert Dominici's girlfriend is found killed. The killer also challenges Datti on the phone and says he can't be caught since he has a secret which makes him invulnerable. In the meantime the clues seems to point in strange directions...
Giorgio Di Battista | Director of Photography |
Daniele Alabiso | Editor |
Ruggero Deodato | Director |
Gianfranco Clerici | Screenplay |
Pino Donaggio | Original Music Composer |
Gigliola Battaglini | Screenplay |
Pietro Innocenzi | Producer |
Vincenzo Mannino | Screenplay |
Gianfranco Clerici | Producer |
Vincenzo Mannino | Producer |