Doctor X: Mafia in White

On her first day at the hospital, Gye Su-jeong quickly ruffles feathers when she weighs in on an upcoming surgery — only to jump in when a crisis arises.

Faced with two pancreatic cancer patients — a wealthy chairman and a teenager — hospital staff clash over who to prioritize. But Su-jeong wastes no time.

The hospital staff grow suspicious of Su-jeong's past. When a cleaner suddenly collapses, Su-jeong must make a decision as no surgeon is available.

After a new surgeon arrives at the hospital, Jang Hui-suk and Su-jeong keep a close eye on him. Meanwhile, a pharmaceutical rep suffers an emergency.

Su-jeong makes a disturbing discovery about Na Dae-il and a patient. As her colleagues debate their next move, she gets a chance to make him pay.