谋杀计划

简介：WhitneyCameronn(Cotten),amanwithastrongaffectionforhissister-in-law(Peters).Whenoneofherstepchildrendies,it'srevealedthatthechildwaspoisonedtodeath.Whitneysuspectshissister-in-lawmittedthemurderandisafraidthatherothersonmaybeindanger.Thefilmclimaxesduringanoceanvoyageaboardacruiseship.