Doctor (Korean: 닥터) is a South Korean horror film written and directed by Kim Sung-hong, starring Kim Chang-wan in the lead role of a plastic surgeon who performs strange body experiments on his victims.

It is revealed that Soon-jung's mother planned the marriage so that she could herself get whatever luxuries she wanted and to get her daughter cosmetic surgery.

In-beom breaks a bottle over her head, leaving her unconscious and drags her into a dark room.

He is soon visited by a young lady willing to get a breast surgery, whom he decides to surgically enhance to take Soon-jung's place.

While in hospital, In-beom secretly injects Soon-jung with a special drug, making her unable to speak.

He slashes Soon-jung's left eyelid and rest of her face, then leaves amidst the chaos and police looking for him.

[3] Actress Bae So-eun caught the audience attention due to her graphic nudity in the film.

[4] Paul Quinn from Hangul Celluloid wrote "With 'Missing' having appeared to point to Kim Seong-hong as a director with a talent for realising visceral narratives in almost shocking but nonetheless gripping form, I for one was hopeful that 'Doctor' would further build his reputation within the horror genre.

"[5] A reviewer at HanCinema wrote "Doctor might be an interesting enough thriller while it establishes its elements, which are not groundbreaking by any stretch.