Engel, die ihre Flügel verbrennen

One night in Munich, Robert Susmeit, a 16-year-old teenager who has a manifest obsession with his mother, stalks her to the flat of her lover. After confronting them in the complex's swimming pool, things take a turn for the worse. While the detectives and reporters comb the building, Robert seeks refuge in the flat of a young girl of a similar age who has taken a shine to him. (Summary by TMDaines)