内容简介
HerculePoirotisdeterminedtosolveanoldhusbandandwifedoublemurderthatisstillanopenverdict...HerculePoirotstoodonthecliff-top.Forhere,manyyearsearlier,therehadbeenatragicaccident--thebrokenbodyofawomanwasdiscoveredontherocksatthefootofthecliff.Thiswasfollowedbythegrislydiscoveryoftwomorebodies--ahusbandandwife--shotdead.Butwhohadkilledwhom?Wasitasuicidepact?Acrimeofpassion?Orcold-bloodedmurder?Poirotdelvesbackintoacrimecommitted15yearsearlieranddiscoversthat,whenthereisadistinctlackofphysicalevidence,it'sjustaswellthat'oldsinsleavelongshadows'!赫尔克里·波洛伫立于崖顶。多年之前,这里发生了一起悲剧性的事故;更令人惊疑的是,随后又有一对夫妻双双陈尸于此——两人均中枪身亡。可他们究竟死于何人之手?莫非是二人约定自杀?还是一时冲动犯罪?抑或残忍的谋杀?波洛回溯遥远的往事,走进旧罪那长长的阴影之中……