Tragedy at Sunset

Lin Fan and Jiang Tao investigate cases together. Lin Fan, a police officer, grew up an orphan, while Captain Jiang Tao has a close-knit family. In Kyoto, a city where murders are almost unheard of, several strange cases suddenly occur. As their investigations deepen, they discover that every case involves someone who went to middle or high school with Lin Fan, and that all of them, like Lin Fan, grew up as orphans. What secret lies behind it all?