Kill-Fist (2019)

Plot

Zhang is an insurance salesman stuck in a rut, his marriage crumbling and custody of his daughter slipping away. On top of everything, he's caring for his father, who's losing himself to Alzheimer's. Desperate for money, he stumbles into an underground fighting ring. What begins as a quick fix soon becomes an obsession, pulling Zhang into a brutal new world where he transforms from reluctant brawler into a professional fighter.