A grisly spectre of murder and greed hangs unseen over the tiny corner of London known as Garden Green. Brought in to investigate a number of apparently unconnected disappearances, Albert Campion finds himself faced with a series of ever more disparate clues: a country bus with a pair of unusual passengers parked outside a London theatre; a lizard-skin lettercase; a left-handed glove. Over the course of a single day, he must race to stop a singularly ruthless killer whose own complex web of deceit threatens to destroy those closest to him.