Hercule Poirot, along with three other luminaries from the world of crime detection, is invited to dinner by the renowned London socialite Dr Shaitana. Also on the guest list are four members of what Shaitana calls his Black Museum - a collection of murderers who have each succeeded in 'getting away with it'.
Wealthy businessman Rex Fortescue is found dead with rye grain in his pocket. His death is followed in quick succession by a woman dying while eating bread and honey, and a maid in her garden. Inspector Neele, in charge of investigating the spate of murders, consults with Miss Marple, who has an interesting...