John Liu stars as Shao Yu Pai, master of the "northern kick" kung-fu, still seeking revenge for the death of his brother. Evidence mounts that Lu Tung Chung (Alexander Lo), master of the "southern fist" kung-fu, is the culprit. What Shao doesn't realize, however, is that the true villain is subtly manipulating both the martial artists behind the scenes, hoping to force them into a confrontation and have the dirty work done for him.

Japan conquers China just before WW2 starts. Chinese women are captured and placed in concentration camps, where they are tortured and humiliated. Some try to escape incurring enormous risks, and death if they fail.

Kang-hie recalls from her cell how she was used by Japanese detectives to track down and destroy the Korean Independence fighters. She manages to escape from prison during a break and proceeds to hunt down her former lover who was a Japanese agent.

Julia, aged 18, kills her sister by pushing her from the 12th floor; and at the discotheque, she hits her classmate's head with a beer bottle. Julia is arrested and sent to the Girls Rehabilitation Centre where she is tortured and savaged by the guards. The film was originally a Korean movie from 1974 titled "Julie, a Half-blood" (https://www.kmdb.or.kr/eng/db/kor/detail/movie/K/02793), released 10 years later as a HK movie with fake credits.