An amoral, psychotic playboy incites three men who are down on their luck to commit a mail van robbery, which goes badly wrong.
When a sickly Victorian woman dies suddenly, a postmortem reveals that her body contains a fatal dose of arsenic. Suspicion falls on her husband and her companion, who are lovers. Inspector Martin of Scotland Yard solves the mystery of her death... over a cup of tea.
An ex-GI wakes up with blood on his clothes in a strange hotel room. He can't remember the night before but he later finds out that a man he got into a fight with earlier in the night was murdered.
