Residents of the town are captured by an unknown armed group. They start experimenting on humans, but experiments fail because of some unstable situations. Therefore, the unsuccessful subjects are taken away from the village and taken to the top of a mountain, but the survivors of the massacre 'arvin' and 'ejla' escape behind the mountains in a deep pit managed to escape. At first they were unaware of what the night-full days were waiting for, though they thought they had been saved. The deep pit they fell into, they begin to turn into grave in time. in the past because they are experimented on them slowly mutated and drift into a dead end.