Sir Gervase Chevenix-Gore suspects he is the victim of fraud and contacts Hercule Poirot. The host's failure to answer to the dinner gong leads to the discovery of his body in the study.
A gun, a shattered mirror - the obvious inference is suicide until Poirot begins his investigation...
Hugh Fraser, known to millions as Captain Hastings in the Poirot productions on television, gives a first-class performance.