Falling Down (1993)
Middle-aged divorcée William hits a breaking point after his car breaks down in Los Angeles traffic during an especially sweltering day. He sets out on foot, determined to make it to his daughter’s birthday party. Along the way, an annoyed William finally begins to express his anger at the world. He destroys a construction site and even shoots up a phone booth after he’s hassled to get off a call.
Sure, this film is an exaggeration of how angry someone can become after a frustrating and overheated day, but real-life research has found that mental health crises surge during extreme heat.