In August 1949, Detective Chief Inspector Bryce and his new bride Veronica are holidaying in the East Anglian resort of Felixstowe. During afternoon tea in the Palm Court of their hotel, a man dies at a nearby table. He has been poisoned. Reluctant to get directly involved, Bryce nevertheless agrees to help the inexperienced local police inspector get to grips with his first murder case, turning his honeymoon into a 'busman's holiday'...