The search for the tattooed convicts leads Sugimoto, Asirpa and Shiraishi to the infamous Botaro the Pirate, a man with nearly superhuman swimming abilities. Tracking him down will test Sugimoto's claim of immortality! Meanwhile, a serial killer stalks the back alleys of Sapporo-but is he another escapee from Abashiri prison or someone else? The murders draw in Lieutenant Tsurumi and Hijikata, and a deadly confrontation is building-but this time, who is the hunter and who is the hunted? For mature audiences.