Delia finds it easy to murder people she tires of and those who annoy her. She uses her cunning to choose a different 'departure' for each victim, and keeps well away from them at the time of their deaths. When Detective Inspector Bob Shackleton marries Delia, years later, he suspects that his beautiful wife is a ruthless, cold-blooded, merciless serial killer. How does he discover this and bring her finally to justice?