Trap

Uhyeon loses his son and wife in the mountains due to an attack of a human hunter. He calls the police and the people are mesmerized at his allegation. As a result, veteran detectives head to the mountains for investigation.

A detective falls off a cliff and dies during the investigation, and detective Go remembers his last words. Meanwhile, a famous profiler Seoyeong arrives, but detective Go does not like her.

Police finds the body of Uhyeon's son in the mountains, but detective Go feels something strange about Uhyeon. Meanwhile, detective Go and Seoyeong is shocked to see the photo given by the witness.

As the case becomes larger, detective Go and Seoyeong face difficulties approaching the case. However, not giving up, they head off to Uhyeon's house and find out that his wife has been cheating on him.

Detective Go and Seoyeong are attacked by an unknown figure, while the escaped Uhyeon asks for help. As they investigate into the hunters, they realize hidden secrets of Hong.

Seoyeong is in danger, while Uhyeon finds his wife's body. Meanwhile, detective Go and another detective find clues about the Korean-Chinese people. Furthermore, Uhyeon and his secrets slowly unveil before he appears on the news.