In the waning days of World War II Albert Campion has returned from Europe on leave. His intent is a quick stopover in his old London flat and then to take a train into the country to be with his wife Amanda and a child he only knows from letters. Unfortunately, he surprises Lugg and Lady Carados, the mother of his close friend Johnny, carrying a corpse into his rooms. And it goes on from there. Campion is thrown willy-nilly into a murder investigation.