The Bloodstained Butterfly

The Bloodstained Butterfly is a 1971 giallo thriller that follows the murder investigation of a young woman, Françoise Pigaut, in a public park during a thunderstorm. The killer's identity appears to be Alessandro Marchi, but as the case unfolds, it becomes clear that there are inconsistencies and misleading evidence. Helmut Berger plays Giorgio, a young pianist who is connected to the case, and whose motives are gradually revealed through the investigation.