Heart, Beating in the Dark A boy and girl struggle to understand their place in 1980s Japan, retiring to copulate and probe each other for answers. Details Casts Posters Title Heart, Beating in the Dark Release Date 1982-02-20 Runtime 01 Hours 15 Minutes Genres Drama Romance Production Companies Office Shirous, Cinema Hout Production Countries Japan Shigeru Muroi... Inako... Takashi Naito... Ringo... TarĂ´ Suwa... Shimamoto... Original Size (500x750)