Classic British murder-mystery, starring Alastair Sim. In August 1944, German flying bombs are raining down on London. Directly under their flight path is a small cottage hospital, where the tension is becoming unbearable for the dedicated team of surgeons and nurses. Their close-knit community is torn apart by jealousy and terrible secrets, and when the local postman is brought in, delirious but trying to impart an urgent message - the murders begin. The eccentric and irreverent Inspector Cockrill (Sim) of the Kent County Police is called in to investigate a truly baffling case where everyone has secrets, but where no-one appears to have a motive.