Ver en Cuevana. Doctor Bianca Valentino is hired to cover the night shift in the ward of a pediatric hospital. She finds herself immersed in an environment that, behind its reassuring image, hides a terrifying secret linked to its past as a children's asylum. The ghost of a child wanders the corridors tormenting her and transforming her nights in the clinic into an endless nightmare that day after day is about to become reality.