December, 1940. With the Luftwaffe pounding the city nightly, Londoners seek refuge in underground stations. Aldwych has been taken out of service to provide shelter for the British Museum's priceless Elgin Marbles, as well
as civilians escaping the bombing. When the body of a young man is discovered on the tracks, wearing evening
dress but barefoot, Detective Chief Inspector Coburg and Sergeant Lampson are on the case.