In a quiet suburb, a family faces the heartbreaking rupture following the divorce of their parents. Clyde, a loving father, tries to maintain normalcy for his two daughters, but things take a dark turn when his youngest, Emily, discovers a strange ancient box at a flea market. Attracted by its mysterious beauty, the girl brings the object home, unaware that it harbors an ancient evil spirit that will gradually possess her.
As Emily's behavior becomes increasingly erratic and disturbing, Clyde begins to suspect that something is wrong. Her transformation becomes evident: from a cheerful girl, she turns into a tormented and aggressive being. Her father, unable to accept what is happening to her, seeks help from experts, but as attempts to free her from the spirit fail, the family environment grows increasingly dark.
As the relationship between Clyde and his ex-wife becomes strained by mounting desperation, they discover that the spirit inside the box is a very dangerous entity, connected to a dark past. In the culmination of this confrontation between the supernatural and the struggle to save an innocent girl, the family must unite to confront the evil that has taken over Emily. Will they be able to free the girl from her dark fate before it's too late? The answer lies in a terrifying journey that will push them to the limits of their strength and love.