Summary
Highlights
The film opens with Clara, who hears menacing voices from her kitchen sink, planning her death. Despite her husband Juan's disbelief, she dies mysteriously, levitating and slamming against a wall. Juan is later approached by paranormal investigators Jano, Mora, and Rosento, who suspect a supernatural cause and link it to an old case and unusual activities at their neighbor Walter's house.
Weeks before Clara's death, Walter experiences escalating paranormal activity, including objects moving and a mysterious entity. He tries to contact Mora for help, but she requires evidence. After setting up cameras, he captures footage of the creature. Meanwhile, a boy named Jon, after drinking water from Walter's yard, is fatally struck by a bus.
Four days after his burial, Jon's body inexplicably returns home, leaving muddy footprints. His mother, Alicia, seeks help from police officer Fonies, who enlists Jano. Jano deduces that Jon's corpse dug itself out and advises re-burial to prevent public panic. Mora, a paranormal researcher, becomes involved, having investigated Walter's house previously.
The story fast-forwards to after Clara's death, with the investigators suspecting a connection between the incidents at Clara's, Walter's, and Alicia's homes due to their proximity. Mora stays at Juan's, Jano at Alicia's, and Rosento and Fonies investigate Walter's abandoned house, discovering strange symbols visible only under UV light. They believe Walter's house is the epicenter of the events.
As the investigation continues, detection equipment at Juan's reacts to water, cutlery at Walter's levitates, and Rosento is stabbed by a knife. Rosento deduces that the entity can only be seen from certain angles, existing in a reality overlapping with the human world. Concurrently, Mora notices a strong connection between the paranormal activity and water, theorizing a dimensional breach and explaining that these entities use water for transportation and influence.
Fonus finds Jano trapped within a cabinet, existing in a distorted space, and Mora discovers Walter similarly ensnared in a wall crack. Mora attempts to explain her theory of interdimensional water-based entities, but is violently pulled into the wall herself. Fonies suffers a heart attack. He later finds Alicia with Jon's re-exhumed corpse. Desperate, Fonies attempts to burn down the affected houses, but Jano’s ghostly presence prevents the matches from lighting, forcing Fonies to use his pistol to ignite the fire.
A year later, Juan is questioned by police about the disappearance of Jano, Mora, and Rosento, and the fires attributed to Fonies. Juan recounts their investigation and mentions seeing Fonies at Jon's funeral. At the end of his interrogation, Juan sees a badly burned Rosento, unseen by the police, and a chair moves violently, indicating that the supernatural events are far from over, despite the destruction of the houses.