A professor comes up with a system to win at roulette, and goes to the famous casino at Monte Carlo to try it out. When he turns up murdered and his "system" missing, a reporter sets out to find the killer--and the system.
| Directing | Ralph Ince | Director |
| Writing | Michael Barringer | Writer |
| Writing | John Hastings Turner | Writer |
| Writing | Tom Van Dycke | Novel |