In an ancient and enigmatic mansion, a group of friends decides to spend a weekend where fun quickly turns into a dangerous game. The hostess, a free-spirited young woman, reveals a family secret about a locked room that, according to legend, holds a dark mystery. As the night progresses and laughter transforms into tension, the curious begin to wonder what lies behind the door.
With the atmosphere thick with intrigue, each member of the group starts to unearth old stories and resentments, while jealousy and secrets begin to surface. In an unexpected twist, they decide to open the door that has remained closed for years, unleashing a series of supernatural events that will test their courage and loyalty.
What seemed to be a weekend of fun turns into a struggle for survival, where each friend is a suspect and every shadow is a reminder that the past is never forgotten. Trapped in a spiral of fear, they begin to question if they truly know those by their side and if the ancient legends could hold more truth than they had thought. Amidst screams and whispers in the dark, they will realize that once the door is opened, there is no turning back. Horror and betrayal intertwine with friendship as they confront what has been hidden for so long.