During autumn of 1952, the Vatican decides to send Father Burke and Sister Irene to the monastery of Saint Cartha, as the nun who was living there, committed the most unforgivable sin of the religious world. She took her own life.
When Father Burke and Sister Irene arrive, they witness a very disturbing sight; the soulless body of sister Victoria, hanged in the entrance of the monastery.
They decide to solve the mystery and that ended in a confrontation with the daemon Valak, who is trying to possess them so that he will be finally able to abandon the monastery and spread evil in the outer world.
The monastery is transformed into a frightening battlefield between the ones that are alive and those who are cursed, while finally the battle is won by Father Burke and Sister Irene.
Ten years later, the monastery has started operating again, even though Father Burke was strongly opposite to that idea as he firmly believed that the daemonic forces are still dominating the place.
The Vatican is informed that a nun in the monastery of Saint Cartha had committed suicide, setting herself on fire. After holding a meeting, the Vatican decides to send you, as a special force, to discover what really happened to the nun. How are you going to face the dark secrets and the daemonic challenges?
Will you manage to close the gate of Valak once and for all and get out of the monastery alive?