Two U.S. Treasury ("T-men") agents go undercover in Detroit, and then Los Angeles, in an attempt to break a U.S. currency counterfeiting ring.

Art curator George Steele experiences a train wreck...which never happened. Is he cracking up, or the victim of a plot?

In 1903, Doctor Huntington Bailey meets a friendly older lady during a train trip. She tells him that she is going to visit her brother Nick and his lovely young wife Allida. Once in New York, Bailey hears that his train companion suddenly died. Shortly afterward, he meets the strange couple and gets suspicious of Nick's treatment of his wife.

An auto engineer and a professor's daughter pose as married servants in a mobster's mansion.