January Hauger young puériculteur clumsy landed a job in an adjoining kindergarten to a psychiatric prison. Through this idiot service the author will develop a plot construction ... crazy! It starts with a love letter received by Ivan "I'd do anything for you, Ivan." It is not known who is the author and one learns that Ivan is a dangerous killer of children, trapped there. An old suspense like rain but effective. We swallow this thriller in which crazy, really is the one who thinks he knows the end before you get there