In an abandoned building in 1973 in Osaka, the body of a murdered man is found. Working quietly and methodically, Detective Sagasaki discovers two people who appear to have clear links to the crime -- Ryo, the uncommunicative son of the dead man, and Yukiho, the charming daughter of the man principally in the frame for the murder. Decades pass. The murder remains unsolved. Ryo and Yukiho continue with their lives, disappearing and reappearing through...