When middle-aged Celia (Carmen Maura) is hired by a wealthy couple -- Dorita (Ana Fernández) and Leandro (Evaristo Calvo) -- as nanny to their troubled son, Daniel (Santiago Barón), she seems perfect for the job. Celia's rapport with Daniel impresses Dorita, but Leandro is suspicious about her past and troubled by her increasing obsession with the boy. Soon, the very religious Celia is gripped by paranoia, believing that Leandro intends to kill Dorita and Daniel, and only she can stop him.
When middle-aged Celia (Carmen Maura) is hired by a wealthy couple -- Dorita (Ana Fernández) and Leandro (Evaristo Calvo) -- as nanny to their troubled son, Daniel (Santiago Barón), she seems perfect for the job. Celia's rapport with Daniel impresses Dorita, but Leandro is suspicious about her past and troubled by her increasing obsession with the...