Murder in the Blue House. Jung Suk Kyu, a chef in the Blue House was found dead in his room in an apparent suicide. Police detectives Kim Han Soo and Park Hee Young are tasked to investigate the incident, which took place in a sensitive period, just before the upcoming peace talks between North Korea, South Korea and the United States.

But as they investigate, it becomes increasing clear that things are not what they seem and they find themselves in a race to find the killer before the killer strikes again.