X + YY: Formel des Bösen
- Yil: 1970
- Mamlakat: Germany
- Janr: Crime, Thriller
- Studiya: Brünnstein-Film
- Kalit so'z: exploitation, playboy, serial killer, hormones
- Direktor: Pavle Jovic, Teja Piegeler
- Cast: Ljubiša Samardžić, Kai Fischer, Miloje 'Mića' Orlović, Albert Hehn, Leonina Pavlović, Stefan Zessner
