Two disc set. Explore your worst fears imaginable with this shocking suspense thriller inspired by disturbing true events. After a 4 a.m. knock at the door and a haunting voice, Kristen McKay (Liv Tyler) and James Hoyt's (Scott Speedman) remote getaway becomes a psychological night of terror as three masked strangers invade. Now they must go far beyond what they thought themselves capable of if they hope to survive.