After fleeing her abusive father, Lily wanders deep into the forest, frightened and lost, until she comes across an abandoned cabin. There, she asks Evan for help. But something seems off about Evan. Completely out of the blue, he drags Lily into the basement and holds her captive there. Lily soon realizes that Evan is delusional and sees her as his long-lost daughter. If she wants to survive, she'll have to play along.