Clara first detects a coordinated, murderous whispering coming from her kitchen sink, a sound her partner Juan dismisses until he witnesses an invisible force brutalizing her in the bathroom. Across the street, Walter captures a tall, naked entity on camera, while Alicia discovers her deceased son seated at her kitchen table. Paranormal investigators Jano and Mora Albreck, alongside Rosentock and commissioner Funes, realize these incidents form a connected grid. They extract Juan from a psychiatric facility to map the haunted properties, setting up a divided overnight observation that rapidly escalates into a coordinated, lethal attack.