Playboy Red Mitchell suffers from chromosome malformation X+YY, a dangerous deformity of the libido. At night, driven by inner turmoil, he roams the streets of the city and murders women. Preferably young, pretty girls who become his victims after he has seen them naked in his imagination with his X-ray vision and then undresses them in real life to kill them. But he soon leaves traces behind, and a cunning detective who suspects his chromosomal drive is on Mitchell's trail...
Unfortunately the movie X + YY: Formel des Bösen is not yet available on HBO Max.
| Sound | Nathan Scott | Original Music Composer |
| Camera | Franz Vass | Director of Photography |
| Directing | Pavel Jovic | Director |
| Directing | Teja Piegeler | Director |
| Sound | Hellmut Middendorf | Sound |
| Writing | Teja Piegeler | Writer |
| Writing | Pavel Jovic | Writer |
| Lighting | Hans Weber | Gaffer |
| Visual Effects | Benedikt B. Damjanovic | Animation |
| Production | Dudo Popovic | Location Manager |
| Production | Gerd F. Reetz | Production Manager |
| Sound | Živko Pivnički | Sound |
| Sound | Hans Weckesser | Foley Artist |
| Costume & Make-Up | Emese Vass | Costume Designer |
