
Mike, vacationing in France, is asked to help a pretty American widow who is traveling on the ocean liner "Isle de France". The woman claims to see her dead husband everywhere, but the ships' officers think she is slowing going insane with grief. Mike agrees with their diagnosis until he sees the "ghost" try to throw the widow overboard; he then races against time to capture the all-to-real spirit before he can finish the job.
When an innocent man is accused of murder, Mike is hired to find the real killer of a photographer who ran a phony modelling school and dabbled in blackmail on the side.