Hello Monster

Hello Monster is a South Korean television series starring Seo In-guk, Jang Na-ra, Choi Won-young and Park Bo-gum. From June 22 to August 11, 2015, it aired every Monday and Tuesday at 21:55 on KBS2. Despite the show's low ratings, audiences and critics alike praised its story and the cast's performances, particularly Park Bo- gum's.

Seo In-guk plays Lee Hyun in this film. Lee Hyun was a "strange child" who piqued the interest of his father, a police inspector, who eventually confined him in a small room to keep him from breeding criminal thoughts. He is a bright child who goes on to study abroad and become a well-known professor. He mysteriously loses his childhood memories, and a series of events forces him to return to South Korea. There, he tries to solve a series of murders that appear to be connected in order to find his long-lost little brother, whom he believes is the serial killer.

Detailed information:
Directed by: Noh Sang-hoon, Kim Jin-won
Starring: Seo In-guk, Jang Nara, Choi Won-young, Park Bo-gum
Release date: June 22, 2015