In a remote hill top mansion, a mysterious stranger emerges from a thunderstorm in the night, seeking refuge with the Whipley family; three young adults ruled by their strict religious mother, and their troubled father, who has vanished the previous night. But perhaps the 'stranger' is more connected to this family and to the dark unknown history of the house than they suspect, and as the visitor begins to cultivate sexual tensions and paranoia within the house, the devilishly erotic history of the Whipley family threatens to lure them deep into its lustful, violent madness once again.