A Espada Vingadora de Kung Fu (1972)

Legendary fighter Wu Song is sent to prison in Mengzhou province after murdering his sister-in-law and her lover. There he meets with the prison officer Shih En, who saves Wu from the baton punishment required for new prisoners. Wu learns that Shih's restaurant, "The Delightful Forest" has been occupied by Chiang Chung. Wu returns to the restaurant-- A place he's dined in previously.