He should have drawn a line. Instead, Pedro agrees to do his ex a favor and checks on her mother. Alicia (Carmen Maura) must have scared away the caregiver, because she is now alone in her worndown estate. But, for sure, Pedro will be out of there in no time, right? He couldn’t be more wrong. A bloody night full of torment and excess lies ahead of him – and Pedro will lose far more than just his nerves.