Death Kiss (1974)

Longing to escape a loveless marriage and his boring but fabulously rich shipowner wife, unscrupulous playboy Dimitris has devised a foolproof plan. So, to inherit her millions and start afresh with his young lover Laura, Dimitris enlists the help of the psychopathic undertaker and serial killer, Mike, to do the dirty work. Now, there's no turning back. But the thing is, the sadistic, drug-addicted sex maniac, too, has his own secret agenda.