The victim of a political assassination is brought back to life by a scientific experiment. However, the effects only last for six hours, and he must find his killer in that time.
| Actor | Role |
|---|---|
 Warner BaxterCaptain Paul Onslow | Captain Paul Onslow |
 Miriam JordanBaroness Valerie von Sturm | Baroness Valerie von Sturm |
 John BolesKarl Kranz | Karl Kranz |
 George F. MarionProfessor Otto Bauer | Professor Otto Bauer |
 Halliwell HobbesBaron Emil von Sturm | Baron Emil von Sturm |
 Irene WareThe Prostitute | The Prostitute |
 Beryl MercerThe Widow | The Widow |
 Edward McWadeIvan | Ivan |
 Edwin MaxwellPolice Commissioner | Police Commissioner |
 Dewey RobinsonBlucher | Blucher |
 Eugenie BessererThe Marquisa | The Marquisa |
 Claude KingConference Chairman | Conference Chairman |
 Torben MeyerSturges | Sturges |
| JJohn ReinhardtMasher | Masher |
 Bodil RosingGreta | Greta |
 Michael VisaroffMonsieur Thereux | Monsieur Thereux |
 Hans Heinrich von TwardowskiFlosky | Flosky |
 John DavidsonKellner | Kellner |
 Michael MarkTownsman in Window | Townsman in Window |
 Wilhelm von BrinckenReporter | Reporter |
 Marilyn HarrisFlower Girl | Flower Girl |
| RRosita ButlerFlower Girl | Flower Girl |