A terrible child kidnapping incident takes place in a mansion complex, where only the top 1% of the most luxurious population reside. With no time to be shocked, the child returns dead and the killer is unknown. However, this incident was just the start of a tragedy. While the crowd is hiding the truth, there are some who start to reveal the twisted hypocrisy and ugly secret inside the mansion.
Tae-soo, a kung fu fan who lives on a remote island with his grandfather Kim Yeong-gam, will come to Seoul along with his uncle Ik-seong who suddenly came. Tae-soo, who had a happy life in school, making friends for the first time in his life had to deal with the school bully Min-hyeok through kung fu.
Jeong-hwan who has a secret past, faces another group of tourists on a remote island he visited to clean up his past. In the guest house where everyone stays together, Jeong-hwan feels a strange atmosphere alone and is wary of the guest house’s owner and finds himself as their target. The moment he managed to escape from a dangerous situation, he struggles against another mysterious existence. As soon as he dig up the dangerous secrets of the island, the pursuit of madness begins!
Kim Sung-su (김성수) is a South Korean actor and television host.