Woosin needs the help of Hyesu, the wife of the heir of Haesong Group, to find Adamas. However, Hyesu refuses to help him, and Woosin faces the crisis of having to leave the mansion; Suhyeon suspects murder surrounding a dead witness.

Woosin sets up a fake fire in the mansion to check the location of Adamas; Suhyeon thinks that Lee Changu, the man on death row for killing his father, is protecting the real murderer. He visits Changu and interrogates him.

Woosin takes advantage of Jaegyu's absence to track the whereabouts of the disappeared Adamas, and Hyesu visits Jang to enquire about it; Suhyeon and Seohui are in danger after being attacked by Haesong Group's secret organisation, Team A.