Craddock House was so full of squabblers, gossips and eavesdroppers that Ross Craddock's killer must have felt quite at home. There was Lee Fenton, Ross's cousin, heard calling Ross "a swine" before sleepwalking (so she claimed) into the victim's flat. The spinster aunt whom Ross was evicting and just happened to see a figure fleeing the house. And there was the blood-smudged Mavis Grey, quite capable of looking after herself; and Bobby Foster, Mavis's suitor, who managed to leave his fingerprints all through the house. With so many clues and suspects throwing themselves at Inspector Lamb, how could he possibly notice the deadliest one of all?