A young couple in tropical Australia is trapped in their home by three fugitives carrying a mysterious icebox containing unknown contents, and they must rely on their wits and cunning to survive as a severe tropical cyclone looms.
Wanting to build a family, a childless couple fosters a young orphan, survivor of a tragic childhood. But their act of love turns to horror when they find themselves besieged by a malevolent entity intent on destroying the new family.