BenandhiswifeJulesareinforasurprisewhentheyinheritanabandonedcoastalpropertythatBen'srecentlydeceasedmothernevertoldthemabout.Untouchedfor40yearsthehouseloomslikeaneerierelicoverlandwhichincludesastunningprivatecoveandbeach.Thebeautyandtranquilityoftheplaceleavethefamilywiththenaggingquestion:whywasthispropertykeptasecretforsolong?WhileJulesrummagesthroughthehouselookingforanswers,Bengoestorepairtheburiedwatertank,notknowingthatindoingsoheisunleashingalong-dormantcreature,fiercelyprotectiveofitsenvironment.