An early Okamoto yakuza film, though it's not in the Underworld series (along with The Last Gunfight and The Big Boss) despite being alternatively known as "Death of the Boss." While Okamoto did not write this film and took on the project because he was assigned and "just doing [his] job" according to an interview with Chris Desjardins in Outlaw Masters of Japanese Film, he did express a general excitement about working in action cinema (which shows through in this film's energy.)
Yuzo Kayama plays the protagonist, a whale-hunting cannon manufactuing supervisor, whose brother is an automobile tester for Komatsu Motors which has a fatal accident. As his brother investigates the "Accident" with his old college friend (makoto Sato), now a reporter... They stumble across murder, espionage and cover-ups. High-class night club, femme fatale, and a "Blueprint of Murder" all adds up to a bigger plot then first expected.
Tatsuya Nakadai plays a scheming low-level executive who plays labor against management and uses anyone he can to further his career in this moral drama. When things get too hot, he bails and goes to work for a prominent politician (Koreya Senda). Soon he has impregnated the daughter (Yoko Tsukasa) of his boss, but he figures marriage will solve his current problems. His happiness is short-lived when he is stalked by a union radical he once double-crossed who now seeks vengeance.
Nuclear tests create a radioactive man who can turn people into slime.
A married Japanese forester during WWII is sent to Indochina to manage forests. He meets a young Japanese typist and promises to leave his wife. He doesn't and after the war, she turns up and the affair resumes.