The bodies of General Alistair Ravenscroft and his wife were found near their manor house in Overcliffe. Both had bullet wounds, and a revolver with only their fingerprints left between them. In the original investigation no one was able to prove whether the case was a double suicide or murder/suicide and, if the latter, who killed whom. Left behind are the couple's two children, including daughter Celia.Poirot decides that the investigation must delve deeper into the past in order to unearth the truth.