On the eve of WW-I the French Navy ship Lafayette returns to its Toulon base for one night. There is no shore leave, although wives are permitted to come to a party. The strain of command on the older captain and his new, young wife is very great.

Joan Wiswell, Ted Workman, and wholesome Helen Ripley are among the half-dozen or more suspects, all for good reasons of their own, murdered a high-society crook called Genne Cassenas.

A man delivering a pair of trousers loses his own pants, setting off a chaotic sequence of events.

On a steamboat heading North, where his brother has struck gold, Mike Dane falls in love with Estelle MacDonald. When he arrives at the Canadian trading post, Dane learns that his brother has been murdered and his partner sentenced to death as the killer.

Beau Nash is a "gentleman crook" who headquarters his gang of jewel thieves in a run-down boardinghouse. When one of his gang, Mike, gets arrested, his sister Claire--aka "Lady Byron"--swears to get revenge. The gang frames Donald, the best friend of the detective who arrested Mike, for a jewelry store robbery. The detective gives Donald--and his new love, Claire--a short time to find the thieves and clear his name before he takes him in.