The Sienese Pia Tolomei is imprisoned in a castle by a jealous husband. Based on the novel by Marguerite Yourcenar, inspired by a story from the Italian Middle Ages.
Two rival street gangs from Kowloon go to war over turf and bar girls so as to dominate the area and maximize their takings; however things go from bad to worse as the girls start to get involved in the bloody feud.
Sandro, a detective, finds his wife strangled. His girl-friend Tiffany, who works as photographer, makes a "Blow up" from a photo, what Sandro finds beside the victim.
In this film the director's recurring concerns return: the divisions in the Chilean left, and its contradictions between what the director calls the "traditional" and the "revolutionary" left.
A film demonstrating steps to take in the event of a nuclear attack. Animated drawings show the effects of atomic explosions in the air and at ground level.