Diary of June is also known as Bystanders. Detective Chu Ja-young (Shin Eun-kyung) and her rookie partner Kim Dong-wook (Mun Jeong-hyuk) arrive at the scene of an apparent suicide of a young schoolboy – which turns out to be murder and not suicide at all. In fact, it is the second murder of a young schoolboy in a couple of days. Schoolboys - who were also classmates. And more murders lie ahead. A serial killer is on a killing spree among the young students – why? Cast: Shin Eun Kyung as Chu Ja Young, Eric Mun as Kim Dong Wook, Kim Yoon Jin as Seo Yun Hee. Watch drama online for free.