What was the piece of media so emotionally overwhelming you just stopped it?

German movie 'Der goldene Handschuh' which tells the true story of 70's serial killer Fritz Honka. When a friend proposed to watch it, I seriously thought it to be a sports movie (the german 'Handschuh' translates to glove and my association instantly was a goal keeper's glove...). Well, I was wrong. The dense and depressing atmosphere of Honka's childhood and life, together with the derogatory, very hard and profane language and of course depiction of sexuality and violence towards women was simply too much for me. It sucked away all positivity at that moment. I finished it later and the director hit me once more, because in the end credits real pictures of the true locations where shown, proving the film's sets where simply identical. That ripped away the last imagination that what I've just seen was just a very dark fantasy and too bad to be real. Brilliant movie and actors (the main actor in his role is simply not recognizable any more from his real life appearance, just like Charlize Theron in 'Monster'), but too hard to for me to take.