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, 'untouched', at the time of their deaths. When Detective Inspector Bob Shackleton marries Delia years later, he discovers that his beautiful wife is a ruthless, cold-blooded serial killer. What will he do to stop her and bring her to justice?