Ritual (2012)

Lost in the woods and hunted by a sadistic madman, "Ritual" is a gripping 'survival horror' with a shocking twist. A man wakes up buried alive in a dense forest. Unable to remember who he is or how he got there, he stumbles frantically, searching for answers. When a horrific discovery in a remote cabin triggers his memory, he sets out on a desperate search for his two missing children. Stalked by a mysterious, masked assailant, only he can save them by before it s too late. But strange and unsettling clues countdown to an ominous deadline ...