The Collingwood’s family have taken a trip to their secluded lake house and teenage daughter Mari Collingwood (Sara Paxton) takes the car to town to hang out with her friend Paige (Martha MacIsaac). As she is waiting for Paige to get off work she runs into a guy by the name of Justin (Spencer Treat Clark), who lures them back to his hotel room with weed. They get kidnapped, their car gets stolen and the kidnappers attempt to leave town. Mari unsuccessfully tries to escape but instead is shot and left for dead. Her attackers stop to rest at the last house on the left, unknowingly it's Mari’s house...