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

Because of the Defibrillator Shock, the bodies of Hae-y and Hwa-sa are switched.

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

Hae-y's plan fails and tells Yoo-jin 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 getting known to Gi San.

Yoo-jin traces truths about his birth. Picking up a towel with blood, Bong-sam doubts Hwa-sa.