The film can be extremely stressful and hard to watch to many viewers, due to it's hardcore realism.
Extremely emotionally intense.
A rather tense, twenty-minute scene depicts the heroine being committed. She behaves increasingly erratic and neurotic until she begins having a nervous breakdown. Her husband has to pry her young children out of her arms as she defensively clings to them.
A similar scene plays out again near the end but it ends well and the heroine recovers.