Appear
When young hotshot Han Ju-won arrives in town, he's assigned to partner with Lee Dong-sik, a maverick cop with a gruesome tragedy in his past.
2 guest appearances
Moon Joo-yeon (Lee Yoo-yeon), Lee Do-hyun (Young Lee Dong-shik)
Series
Beyond Evil
괴물
“These days... It's dangerous to trust someone.”
2021EndedSouth Korea
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What's it about?
As a killing resembling a cold case resurfaces in a small town, the chase for the truth falls on two policemen who each harbor secrets of their own.
Where to stream?
Available
Netflix
Checked 08/27/2026 · last check was a while ago · United States catalog · account required.
Prime Video
Checked 08/27/2026 · last check was a while ago · United States catalog · account required.
Rakuten Viki
Checked 09/29/2026 · United States catalog · account required.
KOCOWA+
Checked 08/27/2026 · last check was a while ago · United States catalog · account required.
Fawesome
Checked 08/27/2026 · last check was a while ago · United States catalog · account required.
Show 3 more services
Tubi TV
Checked 08/27/2026 · last check was a while ago · United States catalog · account required.
The Roku Channel
Checked 08/27/2026 · last check was a while ago · United States catalog · account required.
Amazon MX Player
Checked 09/29/2026 · United States catalog · account required.
Availability data partly provided by JustWatch via TMDB.
Trailers & videos
[티저] 신하균(Shin Ha-kyun)x여진구(Yeo Jin-goo), 우리 중 괴물은 누구인가·· 〈괴물〉 2월 첫 방송! — Teaser · Korean · official · YouTube
Cast
Shin Ha-kyun
신하균
Lee Dong-sik
16 episodes
Yeo Jin-goo
여진구
Han Joo-won
16 episodes
Choi Dae-hoon
최대훈
Park Jung-je
16 episodes
Choi Sung-eun
최성은
Yoo Jae-yi
16 episodes
Kim Shin-rock
김신록
Oh Ji-hwa
16 episodes
Cheon Ho-jin
천호진
Nam Sang-bae
16 episodes
Park Ji-hoon
박지훈
Kwon Hyuk
16 episodes
Choi Jin-ho
최진호
Han Ki-hwan
16 episodes
Kil Hae-yeon
길해연
Do Hae-won
16 episodes
Heo Sung-tae
허성태
Lee Chang-jin
16 episodes
Nam Yoon-su
남윤수
Oh Ji-hoon
16 episodes
Lee Gyu-hoe
이규회
Kang Jin-mook
16 episodes
Kang Min-ah
강민아
Kang Min-jung
16 episodes
Kang You-seok
강유석
Im Gyu-seok
16 episodes
Jeong Gyu-su
정규수
Jung Cheol-moon
16 episodes
Son Sang-gyu
손상규
Jo Gil-goo
16 episodes
Baek Suk-kwang
Hwang Gwang-young
16 episodes
Yoo Byeong-hun
유병훈
Lieutenant Ha
16 episodes
Park Bo-kyung
박보경
Im Seon-nyeo
16 episodes
Kim Bi-bi
김비비
Han Jeong-im
16 episodes
20 of 28 people — scroll sideways
Crew
Producer
Park Seong-eun
Director
Sim Na-yeon
Writer
Kim Soo-jin
Episodes
Season 1 — 16 episodes · from 02/19/2021
Page 1 of 1 · Episodes 1–16
Disappear
The discovery of an unidentified human skeleton raises unsettling possibilities. Dong-sik drags Kang Min-jeong back to town from a Seoul night club.
1 guest appearance
Lee Do-hyun (Young Lee Dong-shik)
Smiled
Ju-won's suspicions about Dong-sik's involvement in the case intensify. The emergence of a mysterious cellphone places Ju-won in a tight spot.
Cried
Coming up empty with Dong-sik's interrogation, the police root around Yoo Jae-i's butcher shop. Ju-won makes an explosive statement to the public.
2 guest appearances
Yu Yeon Seok (Reporter), Joo Eun-seo (Reporter (eps 4))
The Deceit
A fight breaks out as Dong-sik prevents Kang Jin-muk from being taken advantage of. Oh Ji-hun is confronted about the night of the disappearance.
1 guest appearance
Lee Do-hyun (Young Lee Dong-shik)
To Deceive
Ju-won agrees to Jin-muk's request to carry out his own unofficial investigation. Do Hae-won moves to put an end to the case and protect her son.
The Text Messages
Park Jeong-je does the right thing. The arrival of a second text from Min-jeong points Dong-sik toward someone who's figured out the truth.
The Arrest and Interrogation
News of the killer's arrest scandalizes the town. The killer refuses to speak to anyone but Dong-sik and Ju-won. Their interrogation hits a nerve.
1 guest appearance
Ju Ye-eun (Yoon Mi Hye [Young])
Bodies Found
Following a clue from an old video, Dong-sik searches desperately for his sister's remains. Ju-won and Jae-i each return after three months away.
Interrogating the Chief
Seeing CCTV footage, Dong-sik is convinced he's figured out the real culprit behind the killer's death. Ju-won puts a GPS tracker on Nam Sang-bae.
Who Killed Sang-bae?
Committed to getting to the bottom of the latest murder, the team pulls together — and considers two of their own as prime suspects.
1 guest appearance
Lee Do-hyun (Young Lee Dong-shik)
Jeong-je and the Deer
The truth behind the events from the night of Lee Yu-yeon's death begins to unravel. Jeong-je struggles to remember what happened.
The Next Commissioner General
As detectives begin to connect the dots, Han Ki-hwan's ties to the case become clearer. Dong-sik asks Ju-won if he can trust him.
Setting the Trap
Dong-sik listens in on a conversation that brings to light many long-held secrets. A determined Ju-won sets out to uncover further truths.
Letting Go
After obtaining an astonishing audio recording, Ju-won resolves to pursue justice at any cost. Dong-sik and Ju-won question Lee Chang-jin.
Catch
In the aftermath of another sudden killing, Dong-sik joins hands with Ju-won to bring down the guilty — and deliver necessary punishment.
Image gallery
Posters (19)
Stills (19)
Images © their respective rights holders · Source: TMDB