Penance
Master of Japanese horror Kiyoshi Kurosawa's eerie, intense psychological thriller PENANCE (Shokuzai) unfolds on a sleepy small town playground, when a mysterious stranger approaches a group of young friends, then kidnaps and brutally murders one of the girls. Wracked with grief, the victim's unhinged mother Asako (Kyoko Koizumi) demands that the shaken survivors identify the killer or face a penance of her choosing. Growing up in the shadow of this tragic debt, each of the four girls cultivates a warped survival mechanism - avoidance, desperation, fear, obsession.
Starring Kyoko Koizumi, Yu Aoi, Eiko Koike, Sakura Ando, Chizuru Ikewaki, Hazuki Kimura, Erika Omata, Manatsu Kimura, Asumi Kikuchi, Kyoka Shibata
It's a crime and drama show, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of show.
Watch it here
Not found streaming from United Kingdom.