With the death of her father, a daughter reluctantly returns to the family temple hidden in the mist covered mountains where dark and forbidden secrets dwell.

The dead return to life as cruel predators - the so-called "returners" have spread all over the world. Only a few survivors succeeded in escaping from this madness. They are submerged in remote areas, because the cities were completely occupied by the returners. There is only one person who still daggers in the cities: the Undertaker. A dark hero, a champion of the battlefield and equipped for the world after the apocalypse, starts his own personal revenge campaign.