10 parts Complete MatureThe series follows a young man who must face the strange and terrifying changes in his father after the death of his mother. At first, he thinks it's just grief, but soon, bizarre phenomena and his father's unusual behavior begin to emerge. His father starts waking up at night, talking to his reflection in the mirror, and performing dark rituals in the woods.
The protagonist gradually discovers that his father is involved in an ancient cult that worships supernatural entities from another world. These rituals have allowed a terrifying demon to possess his father, threatening not only their family but the protagonist's life as well.
As he struggles to free both his father and himself from the demon's control, he uncovers horrific secrets about his parents' past and must confront terrifying fears beyond his imagination. In the end, he is forced to confront the demon, but even after defeating it, the shadow of evil still lingers, leaving him with the dread that it will return.