A young man who was sentenced to 7 years in prison for robbing a post office ends up spending 30 years in solitary confinement. During this time, his own personality is supplanted by his alter ego, Charles Bronson.
This movie contains 21 potentially triggering events.
After Bronson talks about being at a "funny farm" there is a graphic scene of someone soiling themselves. It ends once you hear a door open and the bedroom area is shown.
Bronson's also fights someone as a part of his first fight and urinates on them after winning.
When Bronson is drugged there is a scene with people tossing a basketball back and forth. Bronson is drooling in a chair for a whole scene and then spits.
A portion of the movie takes place in a mental institution. However it doesn't look like a hospital. But the patients wear white hospital outfis and many distressed patients are seen throughout this portion.
It's a bit unclear but I think the intent was a joke, when Bronson meets up with his Uncle there are people who could either be crossdressers or trans women and they are introduced in what could be a joking way.
Bronson's Uncle places a hand suggestively on his knee and appears to be a sexually open relationship with multiple people. It may be triggering to some how it was implied that Bronson would be sexual with the group of people including his Uncle. Nothing is shown.