Rika - Jisho 28 Sai no Junai Monster

リカ ～自称28歳の純愛モンスター～

Also known as Rika: Self-Proclaimed 28 Years Old's Pure Love Monster, リカ 自称28歳の純愛モンスター, 觸目驚心的純真 劇場版, Rika -Love Obsessed Psycho

A dead body in a suitcase is found on a mountain. The body is identified as Takao Honma. 3 years ago, he was kidnapped by Rika Amamiya and went missing. Detective Jiro Okuyama tries to catch Rika Amamiya. He uses a dating app, while using a fake name, and finally finds Rika Amamiya, but he becomes attracted to Rika Amamiya.