In 1990s Madrid, a group of teenagers embarks on a quest to connect with the supernatural through a Ouija board. Among them is Verónica, a sensitive girl burdened with responsibilities, who must care for her three younger siblings after her father's death. The mission seems straightforward and somewhat fun, but it soon turns into a terrifying experience. What began as a game transforms into a nightmare when they awaken a dark entity that starts to haunt Verónica and her family.
As tensions rise, the young girl plunges into the whirlwind of the supernatural, trying to protect her siblings from the horrors they have unleashed. While she contends with the terror that invades her home, the pressure in her everyday life intensifies: school, friendships, and her own mental health are all affected. As time passes and the entity becomes more aggressive, Verónica seeks help from a mother superior and a priest, but their efforts seem insufficient against the evil looming over them.
With the weight of fear and the struggle to keep her family united, the protagonist confronts the unexplainable, leading us to a deep reflection on love, loss, and the fight against the unknown. The atmosphere of tension and the connection to the past intertwine chillingly, making this experience unforgettable.