Prison on Fire is a 1987 Hong Kong prison film directed by Ringo Lam and starring Chow Yun-fat and Tony Leung Ka-fai. Yiu (Tony Leung Ka Fai) is a young advertising executive in Hong Kong. One night, defending his father from attack, he accidentally shoves a street thug in front of a bus. Sentenced to three years in prison, Yiu is "fresh meat" for the hardened criminals and triad stooges that run things, and is preyed upon by sadistic guard Scarface (Roy Cheung). The virtuous Ching (Chow Yun-Fat) befriends Yiu and becomes an ally. A sequel, Prison on Fire II, was released in 1991. Plot The advertising designer Lo Ka-yiu is sentenced to three years of imprisonment in a Hong Kong prison for manslaughter. He was convicted for pushing a man who had robbed the grocery store of his father onto a street under a passing bus. He is assigned for work at the prison ward where he meets Chung Tin-ching. The men befriend each over and Yiu asks to be transferred to the laundry where Ching is working. Yiu observes how a member of the gang of triad boss Micky steals scissors from Ching (to use them as a weapon). Yiu notifies Ching who manages to get the scissors back, but as a consequence Yiu gets bullied by the triad members. During a cell inspection forbidden items (playing cards and improvised weapons) are found and several men from the cell (among them Yiu, Micky and Bill, the boss of another triad) are brought to ranking warden officer Hung for questioning. Hung is nicknamed "scarface" by the prisoners due to a characteristic scar. He tries to recruit Yiu as an informant, which he refuses. Following that Hung questions Micky, asking him to let his henchmen search for tools which went missing in the prison work shops (serving as makeshift weapons). In return Hung would transfer one of Micky's rivals to a different prison. Since someone needs to be held responsible for the improvised weapons, Micky proposes to claim that Yiu blamed one of Bill's men. Hung accepts the deal and transfers several triad members to another prison as "punishment". The following night Yiu is dragged into the cell's lavatory by Micky's men and beaten up. Ching attempts to stop them to no avail. When one of the guards hears the noise and intervenes, Yiu tells him he just slipped and