In 1944 an artifact is used in a military experiment. The artifact is the Mask of Anhangá, the executioner of Tahawantinsupay, a Pre-Columbian God. The experience fails. Nowadays, the Mask arrives at Sao Paulo, possesses a body and starts to commit visceral sacrifices on vengeance for the incarnation of its God, initiating a blood bath. A true mystical slasher film in the city of Sao Paulo.
