At 3:00 AM, nurse Camila is jolted awake by her daughter, Tessa. Tessa desperately prevents her mother from turning on the lights, claiming that a monster is loose in the hospital—and guides her to safety, narrowly evading a series of lethal attacks. It is only when Tessa reveals, "I’ve already died at its hands once before," that Camila realizes her daughter has been reborn, carrying the memories of her own death from a previous life.
As the mother and daughter attempt to escape the hospital, they are relentlessly hunted by a mutated chimpanzee—a creature capable of walking upright and possessing near-human intelligence. Even more chillingly, the monster is fixated on finding a mysterious metal box that Camila has hidden. As she digs deeper, Camila discovers that the box contains records of illegal human genetic experimentation—experiments initiated by her own mother—revealing that this catastrophe was no accident.
Meanwhile, Tessa uncovers a dark conspiracy: her father, Tristan—the hospital’s director—has been colluding with a woman named Mara. Desperate to destroy the evidence of their illicit experiments, they plan to use Tessa as leverage to force Camila to surrender the metal box. With the monster closing in and those closest to them turning into enemies, Camila and Tessa must fight for their lives within the locked-down hospital—determined to rewrite their tragic fate and expose the truth behind the experiments that have been kept hidden for years.
