WhenLisa’sfatheriskilledinahitandrun,wediscoverthathehasasecretdaughterfromhisfirstmarriage.HernameisMarieandsheisaconvictedmurderer,outonearlyreleasefromprison,anddrivenbyasinglepurpose-revenge.LivingunderasecretidentityasBethany,MariehasconnivedherwaytolivingandworkingclosetoLisa,lurkingandplanningherrevengeaspaymentforthelifeshefeelscheatedoutof-alifeshefeelstheirfatherunfairlygavetoLisa.MariehassetadeadlytrapforLisatotakebackwhatsheisowed,leavingLisa,hermotherandtheirfriendstofightfortheirlivesagainstthemurderoussistersheneverknew.