Lawrence Huntington Productions (I)

A government agent is returning from France with secret blueprints that were stolen from his government. On the train ride home, thieves break into his compartment and murder him.

In this British crime drama, a nightclub chorine jilts her old boyfriend, a musician, in favor of a new fiancé. Not long after, her new love is murdered. Although the prime suspect is the musician, he is not the guilty party.