Eien no 1/2 (1987)
Original title: 永遠の１／２
Eien no 1/2 is a 1987 Japanese-language drama movie directed by Kichitaro Negishi, with a running time of 1h 41m. It stars Saburo Tokito, Shinobu Otake and Tomoko Nakajima.
An unemployed young man who has just broken up with his girlfriend meets a woman at a bicycle race. They start dating but then strange things then begin to happen to him, including a beating from the local yakuza. - Wikipedia