Elaine Shepherd arrives in San Francisco to visit with sister Polly Ann Young. Miss Young is married to Theodore von Eltz. Eltz owns a jewelry store at the edge of Chinatown with his brother. Their main income is as a fence. Miss Young has found out, and proposes to leave him. She vanishes. In the meantime, Miss Shepherd has met Norman Foster and Vince Barnett, who operate a sightseeing bus.
Foster also directed the movie, his first time wielding the megaphone, and he does a terrific job for a Poverty Row B movie. The dialogue and visual pacing move right along. There's a lot of location shooting on San Francisco's streets, and references to actual San Francisco institutions. Foster does such a good job that he makes Barnett not terribly annoying, and Harry Gribbon is okay in a small role as an express man.
Foster would appear in a couple of other movies over the next few years, and then again starting in the 1970s. In the meantime he directed B movies and television. He died in 1976, aged 72.