A mad scientist creates a monster called "Mosaico," who breaks out of the laboratory to hunt down and kill beautiful women.
| Actor | Role |
|---|---|
 John RichardsonKarl Schein | Karl Schein |
 Gordon MitchellDr. Otto Frankenstein | Dr. Otto Frankenstein |
 Renato RomanoInsp. Schneider | Insp. Schneider |
 Xiro PapasMosaic | Mosaic |
| DDada GallottiButcher | Butcher |
| RRoberto FizzProfessor Schwarz | Professor Schwarz |
 Dalila Di LazzaroSonia | Sonia |
 Marisa TraversiSecond Prostitute | Second Prostitute |
| LLemmy CarsonFritz | Fritz |
 Marco MarianiTrack Spectator | Track Spectator |
 Luigi BonosHobo | Hobo |
 Fulvio MingozziSecond Investigator | Second Investigator |
 Umberto AmambriniVice Straus | Vice Straus |
 Luigi Antonio GuerraAgent | Agent |
 Eolo CaprittiWitness | Witness |
 Renate KaschéRedhead in car | Redhead in car |
| AAnn OdessaStripper | Stripper |