THE HITMAN (aka A CERTAIN KILLER) (1967): The main character is a man from the WW2 generation who has lost his dreams in post-war Japan. While working as a cook in a restaurant he also earns some money as a contract killer. He kills a Yakuza-boss using a tatami-needle and hides in a shabby apartment in a suburb.
Director: Kazuo Mori, Stars: Raizo Ichikawa, Yumiko Nogawa, Mikio Narita

THE HITMAN'S KEY (1967): The sequel to THE HITMAN (1967)
Director: Kazuo Mori, Stars: Raizo Ichikawa, Ko Nishimura, Tomomi Sato