Despite being his secretary, Effie is jealous over seeing Sam out with another woman. He soon returns to the office to deliver the report on his latest case. The weather had been bad, and the same for business. Donald O Stryker comes from an old English family, and wants to hire Sam. A dieing man warns him to beware of a siren, and gives him a picture. Is it just a wacko, or is there real concern?
Checking on leads,Sam finds an out of tune boarding house matron, singing to an also out of tune piano. Sam isn’t in time to stop a murder, but he lets the cops handle the matter. His next step is to track down the siren in the picture. Murder seems to be a step ahead of Sam, as his trail grows closer to the red headed dame in the picture.
Visiting the morgue, Sam discovers more clues about the murders connected to the dame. Though he tries to warn Dundee, the cop can’t do much about crimes that haven’t happened yet. Sam is sure the dame isn’t the killer, but that she’s working with someone. What’s the motive behind it all?
Tailing a contact, Sam is led to the dame, and a connection to a plan that was hatched from prison, and is now playing out. Will he ever catch up to the evasive dame? Will he Figure out a trap to catch his bad guys? You know he will, and the truth will be exposed.