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...
Michael York
Edwige Fenech
Donald Pleasence
Mapi Galán
Fabio Sartor
Score: 7.6
Score: 6.2
Score: 5.9
Score: 6.7
Score: 6.6
Score: 4.8
Score: 4.0
Score: 5.5
