Siles, a wealthy American, devotes all his time to research. When he tests a tincture on himself he discovers his physical appearance has transformed, and that he can transform back with the use of another tincture. Siles decides to take advantage of his transformations and live a double life.
| Actor | Role |
|---|---|
 Alwin NeußSiles | Siles |
 Hanni WeisseNot listed | Not listed |
 Lotte NeumannNot listed | Not listed |