After being released from prison for the murder of his wife, a man sets out find his wife, who is still alive, and finish the crime for which he was imprisoned.

When a wealthy associate dies, Harry is left a cigar box containing film clips of the 1906 San Francisco Earthquake, a cigar, and baseball cards in the will of the man who died. The cigar box also contains a message: "If you're as good a detective as you think you are, use these clues to discover the key to my success."

Harry is hired by a nun to find out how a prostitute was able to get herself into the will of a priest.