Agatha Christie's dark crime thriller sees Poirot drawn into a deadly game of murder during a country house weekend. Poirot's fascination for observing human behaviour leads him to accept an invitation to The Hollow, the beautiful country retreat of the eccentric Angka tell family. The weekend's events take a sinister twist when the family stages a murder tableau and discovers that the 'victim', Doctor John Christow, really has been shot. The prime suspect for the murder is the Doctor's wife, but as Poirot investigates, he discovers that everyone in the house had a reason to want Christow dead.