Windstruck.

Mingyu (Zhang He) is a gentle, upright, and kind-hearted high school teacher. One day, when he bravely assisted others in chasing a thief, he was mistakenly captured by a police officer named Tong Zhen (Chun Chih hsien) who was on leave and had a rebellious and fierce personality. Tong Zhen then subjected him to severe punishment and forced him to confess, but it was ultimately proven that he had no criminal record