A couple staying at an isolated vacation home, returns from a wedding reception. They receive a knock on the door in the middle of the night. What ensues is a violent invasion by three strangers, their faces hidden behind masks. As the night goes on, the reality of their psychological terror becomes more terrifying than anything both could have imagined. Now, they must go beyond what either of them thought they were capable of in order to survive....

Amanda and her daughter live a quiet life on an American farm, but when the remains of her alienated mother arrive from Korea, Amanda becomes haunted by the dread of turning into her own mother.