Prolific director Kurosawa creates a provocative commentary on inter-generational conflict and the no-hope outlook of some Japanese youth. Enigmatic Mamoru lives alone with his poisonous jellyfish. These beautiful sea creatures are loners that sting whoever gets too close. Mamoru works at a utility factory. He fascinates and influences Yuji, an unstable younger colleague. When Mamoru is arrested for murdering their boss, Yuji takes on the care of his dangerous pet - and also develops a relationship with Mamoru's father.