At the end of the 20th century, the killer organization "Eight Hundred Dragons" became bigger. The leader Lei Qilong was defeated by the rebellion of Ji Qiutang (played by Liu Xun), so he led his men to Moscow to find the liaison "Billiard" who had retired from the underworld in order to quell the rebellion. Billiard lived in the north for a long time and adopted a son and a daughter, Yao Long (played by Xu Guanjie) and Ye Mumei (played by Maggie Cheung). Because he was no match for the killers of Lei Qilong and Ji Qiutang, Billiard chose to cooperate with Lei Qilong and lure Yao Long into the hands of the enemy. In order to eliminate Ji Qiutang, Lei Qilong severely trained Yao Long, who had excellent qualifications. After Yao Long lost his memory, he was at his mercy. Fortunately, Lei Qilong's daughter Zi Yanzhu (played by Li Lizhen) teased and accompanied him. Yao Long was trained to become a killing machine codenamed "Freeman". He eliminated Ji Qiutang's forces for Lei Qilong. During this period, he was discovered by Ye Mumei who was looking for him, but the two could not recognize each other. Ji Qiutang's daughter, Miss Tiger (played by Wu Jiali), cooperates with police officer Xin Tian (played by Sun Xing) to investigate the true identity of the free man. Ye Mumei was taken away by the Seven Dragons of Tears, and Yao Long, who gradually recovered his memory, wanted to take back what he had lost... This film is adapted from the Japanese manga "Crying Killer".