Set in decadent, chaotic Hong Kong and Tokyo, the film tells the story of a young woman caught up in a mysterious turn of events. A young tour guide, 23-year-old Mamiko who's had her heart set on Paris, finds herself swept off to booming Hong Kong where she is thrown into the midst of a high-profile burglary case.
When a gun belonging to a police officer is stolen, it ends up in the hands of a student, who decides to use it on a yakuza who beat him recently. Now the police officer is hot on the student’s trail, and he’s determined to prevent the gun from going off.
Shibuya, Tokyo. Yoichi and Michio are a pair of hoodlums who make their living as bookies at horse races. One day, Yoichi's companion commits a crime, which leads him to become a real yakuza. In this way Yoichi wishes to put an end to his hoodlum days, but on the other hand he has to leave his brother Michio behind...
