Detective Bae has fallen from the top of the hospital and died. Dong Guk believes, Detective Bae was murdered by someone. A criminal profiler, Yoon Seo Young, joins the investigation to help Dong Guk but refuses her help. As the search team looks around the mountain, Woo Hyun's testimony is getting more believable. Woo Hyun's close acquittance, CEO Hong Won Tae, visits Woo Hyun in the hospital to check on him. The benevolent and charismatic CEO may have a different face no one knows of.