Un beau monstre (1971)
Directed by Sergio Gobbi

Film Synopsis

Alain Revent enjoys suffering and making others suffer.  There is no greater pleasure he knows than to destroy a cherished object.  When his wife Sylvie, on the brink of a nervous breakdown, throws herself out of a window he can only smile.  Leroy, the police inspector in charge of the case, may have his doubts but the investigation returns a verdict of suicide.  Alain is a monster but he is a beautiful monster.  It is his beauty, and the mystery that surrounds him, which draws to him his next victim, the gorgeous Nathalie.  Once more Alain delights in the suffering he can bring to a fellow creature, one who is devoted to him and ready to marry him.  In no time Nathalie is reduced to a pitiful wretch, through a combination of drugs and torture.  Inspector Leroy now understands what make Alain tick and must act if he is to save Nathalie from herself and the cruel plans that her lover has in store for her...