While You Were Sleeping

Luis Tosar, a middle-aged Cesar ) is the manager of a certain apartment building. During work, he is conscientious, greets every neighbor who passes by him, handles all affairs seriously, and occasionally helps residents take care of their puppies; during his break, he goes to the hospital to visit his mother, telling her about his day's experiences and knowledge. However, Cesar, who seems to be honest and introverted, has an inhumane secret. Every night, he sneaks into the room of the young and beautiful female resident Clara (played by Marta Etura), uses drugs to make her fall into a deep sleep, and harasses her by sending all kinds of hot text messages every day. However, all this does not seem to be an almost crazy obsession, there is a deeper intention hidden behind his behavior. During this period, Clara's physical condition became worse and worse, and her life became a mess. As his perverse behavior progresses, everything develops in an irreversible direction...