Walk on Fire is a 1988 Hong Kong action film directed by Norman Law and starring Andy Lau and Cherie Chung.
In Macau, criminal Tong Heung-tung of the Hunan Gang, who bombed the Hong Kong police headquarters, was being send back to Hong Kong by Kowloon OCTB inspectors Lee Ho-lung and Lo Mo.
Lee chased the gang all the way past the Mainland border and arrested them causing mass destruction which maddened his superior officer Chan.
Leader of the Hunan Gang, Wai, used Chung to lure Lee out to seek revenge for his brothers.
Wai and his gang brought Lee to the pier and brutally beat him before making him drunk and having him drive himself into the ocean, killing him.
The next morning, Lee's wife, May, gave birth to a baby boy and was saddened when she heard of her husband's death.
At night, Chung cried and told Lau that it was not easy to quit drugs with no support.
Lau then promised Chung that after avenging Lee, he would take her to a quiet place in Lantau Island and help her quit it.
When Chung told them that a Taiwanese drug dealer was coming to Hong Kong the next day, Lau thought of a plan to rob him.
At the airport, Lau disguised with a mustache and sunglasses kidnapped the drug dealer when Lo Mo and Chung came to pick them up with a van and drove away while being chased by the police.
While Lau was forcing the drug dealer out of the car, Lo Mo accidentally revealed that they were police officers.
At the Interpol headquarters, Lo Mo successfully tricked the police by faking the accent before he was caught speaking accurate Cantonese.
Lau then gave Chung a large sum of money, telling her to go to Lantau Island alone if the case was going to go on longer.
She refused the money and they later go to a bar and had a drink where Chung sang a song to Lau, expressing her love to him and they later kissed outside.
While Lau was inside his car, two beat cops thought he was parking illegally before he revealed his identity to them and told them to leave.
Later, they end up at the top of a building where Lau shot another gang member and Wai killed the other beat cop.