内容简介
HerculePoirotisdeterminedtosolveanoldhusbandandwifedoublemurderthatisstillanopenverdict!HerculePoirotstoodonthecliff-top.Here,manyyearsearlier,therehadbeenatragicaccident.Thiswasfollowedbythegrislydiscoveryoftwomorebodies--ahusbandandwife--shotdead.Butwhohadkilledwhom?Wasitasuicidepact?Acrimeofpassion?Orcold-bloodedmurder?Poirotdelvesbackintothepastanddiscoversthat'oldsinleavelongshadows'.