The "shower" scene in Mysterious Skin is REALLY tough stuff. Brutal. It wasn't directed by Solondz though. Gregg Araki directed Mysterious Skin.

The really amazing thing about Mysterious Skin is the performance by Joseph Gordon-Levitt (of Third Rock from the Sun fame). Hard to believe it's the same guy. He also gives a terrific performance in 'Brick'. (in theatres now)