Dr. Henry Jekyll experiments with scientific means of revealing the hidden, dark side of man and releases a murderer from within himself.
| Actor | Role |
|---|---|
 Robert BroderickJethro Smith - a modern Jekyll and Hyde | Jethro Smith - a modern Jekyll and Hyde |
 Irene BoyleNora Smith - the Daughter | Nora Smith - the Daughter |
 William R. DunnBill Hykes - Jethro's Henchman | Bill Hykes - Jethro's Henchman |
 Robert EllisRoger Master - Nora's Sweetheart | Roger Master - Nora's Sweetheart |