Betty Blue (1986) on Netflix

Zorg is a handyman working at the seaside in France, maintaining and looking after the wooden bungalows. He lives a quiet and peaceful life, working diligently and writing in his spare time. He is in love with Betty, a young woman who is as beautiful as she is wild and unpredictable. After a dispute with Zorg's boss, they leave and Betty finds a place to stay at her girlfriend's house. The girlfriend's lover owns an Italian restaurant and there they find a job. She is obsessed to try to get one of Zorg's books published, but it is rejected, which makes Betty fly into a rage. Suddenly, Betty's wild manners start to get out of control. Zorg sees the woman he loves slowly going insane. Is his love for Betty strong enough, if even if it comes to the worst?