Top 4 in Top 10 detective Kdramas you must watch once in your life.
Trailer Hello Monster
Also known as I Remember You, Hello Monster tells the story of a criminal profiler who returns home from New York City after a case to which he was sent to induce lost memories. Unbeknownst to him, one of his team members had been secretly investigating him before. Both of them seek to unearth each other's secrets, unaware that they are caught up in a circular game orchestrated by others.
Main actors: Seo In Guk, Jang Nara, Choi Won Young, Park Bo Gum