Psychopath (Italian: Sigpress contro Scotland Yard, German: Mister Zehn Prozent - Miezen und Moneten) is a 1968 film directed by Guido Zurli [it].

He is being tracked by Scotland Yard when he learns that the gem called the Eye of Allah is being escorted from London to Paris.

[3] Guido Zurli was aware of cast member Klaus Kinski's behavior on set, and devised a plan to keep him behaved.

[4] When becoming aware that he was approaching the set, Zurli began acting mad by throwing way the script, yelling and kicking floodlights.

[1] In Germany a novelization of the film was written by Mike Widborg (Peter Leukefeld) and published by Moewig under the title Mister 10% in 1969.