Leo and her husband Julio host an intimate family gathering with Leo’s sister Claudia, Claudia’s partner Héctor, and their newborn son, Izan. What begins as a quiet celebration spirals into terror when Claudia discovers that Izan—and his nanny, Luciana—have vanished without a trace. The sudden disappearance reignites Leo’s buried psychiatric trauma, pulling her into a psychological descent where perception and reality fracture.