2007 film by Johnnie To, Wai Ka-Fai

Set in the changing world of the late 1960s, Susanna Kaysen's prescribed "short rest" from a psychiatrist she had met only once becomes a strange, unknown journey into Alice's Wonderland, where she struggles with the thin line between normal and crazy. Susanna soon realizes how hard it is to get out once she has been committed, and she ultimately has to choose between the world of people who belong inside or the difficult world of reality outside.

Shaun always feels separate and isolated from the confident, happy world around him. Whilst waiting for his parents in a busy pub, Shaun struggles valiantly to join in with the admirably happy people in the crowd, but the more he tries, the more he goes awry. As everything in the pub goes from bad to worse, Shaun finds himself confronted by the painful memories that made him who he is. His feelings, memories and desires overwhelm him and by the end of the evening he is ready to explode...