Routine B&W cheapie based on the implausible premise that a remarried woman (Renee Ascherson) would allow herself to be blackmailed by her crooked first husband (Dennis Price), long since declared dead in the blitz, who turns up and threatens to expose her 'bigamy' unless she coughs up £500 (the amount keeps rising through the film). Any sensible woman would tell him to clear off, and explain this development to her husband, and the police - it is the first husband who is the criminal, not her. (She doesn't know the true extent of his crimes, including theft and murder, but she knows he's a blackmailer!) But there has to be a plot, so fair enough. She pleads poverty, despite having a servant, but finally gives in. When Price pushes her too far she shoots him dead with his own gun, and then decides to confess all to her husband, who rushes to the crime scene to remove the evidence. Oh dear, she's murderer, and their best friend is a copper, heading the search for Price - she's in 'a jam', as desperate situations are described in this kind of script. Fortunately, Price's death is faked - he's going to disappear, and pin the blame for an actual murder on her, relying on another implausible chain of events, incredibly unlikely to occur, but which of course do. Never mind, the cops work it out, and it's all sorted in a hour, with a final revelation that Price has an earlier marriage behind him, so the heroine's current one is legal after all! Contrived hokum.