Episode 1
Pharmacist by day, unlicensed doctor by night, Seok faces the man who ruined her life.
2 guest appearances
Kim Jong-man (Kim Du-bong), Lee Tae-young (Kwon Sin-gyu)
Series
Hyper Knife
하이퍼나이프
“Wishing you nothing but a speedy death.”
2025EndedSouth Korea
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What's it about?
Seok, an eager yet genius neurosurgeon is reunited with Deokhee, the professor who ruined her life long ago. Once, the two surgeons cared for each other more than anyone else. But now with nothing but hatred toward each other, Seok is furious that he is back in her life and vows to take revenge.
Where to stream?
Disney+
Checked 08/22/2026 · last check was a while ago · United States catalog · account required.
Available (check outdated)
Hulu
Checked 09/29/2026 · United States catalog · account required.
Available
Availability data partly provided by JustWatch via TMDB.
Trailers & videos
Teaser Trailer [Subtitled] — Trailer · English · official · YouTube
3 videos — they play on each provider's site
Cast
Park Eun-bin
박은빈
Jung Se-ok
8 episodes
Sul Kyung-gu
설경구
Choi Deok-hee
8 episodes
Yoon Chan-young
윤찬영
Seo Young-joo
8 episodes
Park Byung-eun
박병은
Han Hyun-ho
8 episodes
Lee Jung-sic
이정식
Ha U-Yeong
8 episodes
Kim Jong-man
김종만
Kim Du-bong
4 episodes
Kim Mi-ji
김미지
Reporter
1 episode
Lee Tae-young
이태영
Kwon Sin-gyu
2 episodes
Kim Moon-chan
김문찬
Mr. Park
1 episode
Kim Su-yeon
김수연
Kim Young-sin
2 episodes
10 people — scroll sideways
Crew
Director
Kim Jung-hyun
Writer
Kim Sun-hee
Episodes
Season 1 — 8 episodes · from 03/19/2025
Page 1 of 1 · Episodes 1–8
Episode 2
When Seok refuses to help Deokhee, he begins targeting her businesses.
3 guest appearances
Lee Tae-young (Kwon Sin-gyu), Kim Moon-chan (Mr. Park), Kim Su-yeon (Kim Young-sin)
Episode 3
Seok looks to publicly humiliate her former mentor at the prestigious Ichida Awards.
2 guest appearances
Kim Mi-ji (Reporter), Kim Su-yeon (Kim Young-sin)
Episode 4
Seok continues her attack on Deokhee, diving into his past and searching for a former patient.
Episode 5
Seok's past comes back to haunt her when she gets a call from a former patient.
1 guest appearance
Kim Jong-man (Kim Du-bong)
Episode 6
Seok and Deokhee reunite at the operating table for a complex surgery.
Episode 7
Seok learns Deokhee has been lying to her as she sets up her next operating room.
1 guest appearance
Kim Jong-man (Kim Du-bong)
Episode 8
Seok's dark past finally comes to light, with time quickly running out for both her and Deokhee.
1 guest appearance
Kim Jong-man (Kim Du-bong)
Image gallery
Posters (14)
Stills (25)
Images © their respective rights holders · Source: Poster: TMDB