Bad and Crazy poster

Bad and Crazy

"An unlikely duo unites to regain humanity!"

TV Show TV-MA 2021 1h 10m/ep 7.9 /10 Ended
tvN A tvN Original
Directed by You Sun-dong

Bad and Crazy follows Soo-yeol, a detective who has spent his career chasing wealth and status rather than truth. A hidden alter ego, known only as K, awakens inside him and rewires his sense of justice. The split persona drives him to challenge corruption within the police and the system, even... Read more

Stream Now

Where to Watch "Bad and Crazy"

Stream with Subscription
Rent or Buy

Netflix
Disney+
Max
Hulu
Paramount+
Peacock
Apple TV+

Streaming availability last verified: January 14, 2026

About Bad and Crazy

Bad and Crazy follows Soo-yeol, a detective who has spent his career chasing wealth and status rather than truth. A hidden alter ego, known only as K, awakens inside him and rewires his sense of justice. The split persona drives him to challenge corruption within the police and the system, even as it drags him toward methods that blur the line between law and vengeance. Public Soo-yeol remains cool and calculating, while K acts with a brutal, uncompromising clarity that unsettles colleagues, suspects, and friends. The drama leans into the tension between orderly procedure and uncompromising power, pushing Soo-yeol to decide how far he will go to expose wrongdoing without losing himself. Its pacing is brisk and kinetic.

Directed by You Sun-dong and created by Kim Sae-bom, Bad and Crazy arrives as an original concept that blends crime drama with sci-fi elements, offering stylish pacing and a sleek modern feel. It features Lee Dong-wook and Wi Ha-jun.

Reception notes the show for its brisk energy and sharp contrasts between its two leads. Core themes include dual identity, the cost of corruption, and whether justice can survive when rules or loyalties bend, especially under pressure from powerful criminals and within the police.

Fans have picked up on the tension between a stoic detective and a vigilante alter ego, praising the style of action sequences and the moral questions raised. The pairing signals a distinctive mood within its genre and invites comparisons with other urban fantasy thrillers.

Details

Release Date
December 17, 2021
Episode Length
1h 10m
Rating
TV-MA
User Ratings
101 votes
Type
TV Series
Seasons
1
Episodes
12
Network
tvN
Status
Ended
Genres
Action & Adventure, Crime, Drama, Sci-Fi & Fantasy
Country
South Korea
Studio
Studio Dragon
External Links
View on IMDB

Official Trailer

Cast

Lee Dong-wook

Lee Dong-wook

Ryu Soo-yeol

Wi Ha-jun

Wi Ha-jun

K

Han Ji-eun

Han Ji-eun

Lee Hee-gyeom

Cha Hak-yeon

Cha Hak-yeon

Oh Kyung-tae

Kang Ae-sim

Kang Ae-sim

Seo Seung-sook

Kim Dae-gon

Kim Dae-gon

Ryu Dong-yeol

Cha Si-won

Cha Si-won

Yang Jae-seon

Lee Sang-hong

Lee Sang-hong

Do In-bum

Kim Hieora

Kim Hieora

Boss Yong

Lee Seung-heon

Lee Seung-heon

Kim Kyung-joon

Director: You Sun-dong

Created by: Kim Sae-bom

Seasons (1 season, 12 episodes)

Season 1

Season 1

12 episodes - 2021

Frequently Asked Questions

Bad and Crazy is available to stream on Amazon Prime Video. You can also rent or buy it on Amazon Video.

Yes, Bad and Crazy is available to stream on Amazon Prime Video.

Yes, you can buy on Amazon Video.

Bad and Crazy has 1 season with a total of 12 episodes.

With a rating of 7.9/10 from 101 viewers, Bad and Crazy is well-regarded and recommended by viewers.

Bad and Crazy follows Soo-yeol, a detective who has spent his career chasing wealth and status rather than truth. A hidden alter ego, known only as K, awakens inside him and rewires his sense of justice. The split persona drives him to challenge corruption within the police and the system, even a...

Bad and Crazy stars Lee Dong-wook, Wi Ha-jun, Han Ji-eun, Cha Hak-yeon, and Kang Ae-sim.

Bad and Crazy was created by Kim Sae-bom.

Bad and Crazy was released on December 17, 2021.

Bad and Crazy is a Action & Adventure, Crime, Drama, and Sci-Fi & Fantasy series.

There is only 1 season with 12 episodes and the series is listed as Ended, so a second season hasn't been announced.

Lee Dong-wook plays Ryu Soo-yeol and Wi Ha-jun plays K. The cast also includes Han Ji-eun as Lee Hee-gyeom, Cha Hak-yeon as Oh Kyung-tae, and Kang Ae-sim as Seo Seung-sook.

Ryu Soo-yeol is a police detective who awakens a hidden persona named K inside him. The new persona drives him to fight police corruption and become a champion for justice.

The show has 12 episodes in a single season.