Sofía discovers a mysterious box filled with several stacked audio cassettes in what will soon be her new bedroom. Each tape bears a name, a time, and a specific spot in the house. When she listens to them, she realizes they are recordings of spiritist sessions held there thirty years ago. Determined to find out whether her new home is truly haunted, Sofía invites two of her best friends, Camila and Verónica, to spend together an unforgettable girls’ night.