Dr. Herbert East is working in his uncle's clinic and experimenting with brain transplants.
| Actor | Role |
|---|---|
| MMichel FinasHerbert East | Herbert East |
 Jean RollinDr. Roll | Dr. Roll |
| MMarie-Hélène JaninLinda | Linda |
| MMichael RaynaudKarl | Karl |
| EEva SinclairMme Wayne | Mme Wayne |
| GGilles BourgarelDr. Kramer | Dr. Kramer |
| CChristophe LemaireChris | Chris |
| QQuelou ParenteBonnie | Bonnie |
 William LustigMan with nightmares | Man with nightmares |