Eulji Hae-y, in charge of Jang Hwa-sa's retrial, reunites with her in Room No. 9.

Because of the defibrillator shock, Hae-y and Hwa-sa switch bodies.

Hwa-sa sees Young-bae alive and plans to avenge Gi San; Hae-y tries to switch with Hwa-sa.

Hae-y's plan fails and Yoo-jin learns the truth; Hwa-sa's switch is almost revealed to Hyun-chul.

Hae-y proves her change; Hwa-sa drinks with Hyun-chul to prevent her from being discovered by Gi San.

Yoo-jin traces truths about his birth; after finding a towel with blood, Bong-sam doubts Hwa-sa.