In 1997, the countdown to Hong Kong's return to the motherland began.
Chen Jiu, the "human punching bag" of an underground boxing gym in Sham Shui Po, was injected with the banned drug "Nirvana" by gangsters——
The stronger the pain, the crazier the fighting power!
Unarmed jackknife, Muay Thai fights, rooftop fights to the death... He relied on his pain-sensing powers to kill through the Kowloon Walled City, but he became a "medicine man" controlled by the Triads.
In order to save his mother who has terminal liver cancer, he had to deal with three forces:
Gang leader Jiang Tianxiong forced him to test medicine in an attempt to create a "medicine army";
Interpol Ye Wanqing secretly planned to use him as a pawn to solve the case;
The organs in the body are failing rapidly, and there are only 24 hours left for the medicine to take effect!
From transporting drugs from Wong Tai Sin Temple to the decisive battle on the steel cables of Tsing Ma Bridge;
From the antibody code in the mother's blood to the ultimate comeback in rewriting the "pain equation"——
When the returning fireworks light up Victoria Harbor, Chen Jiu uses pain as a blade and lives towards death!
