Lady Chatterton asks for Poirot's assistance - she fears for the safety of her friend, Marguerite Clayton and is convinced that marguerite's husband Edward, known for his violent temper, will kill his wife.Poirot is invited to a party to meet Clayton but he does not appear, and subsequently Poirot finds himself interviewed by Japp when Clayton's body is found in an elaborate Spanish chest.
Source: DVD Nots