Movie

Monstrum

“An ancient man-eating monster awakens.”

★ 6.5(203)20181h 46m

Monstrum is streaming on Amazon Prime Video and Amazon Prime Video with Ads in Japan, and available to rent or buy on Amazon Video, Apple TV Store and FOD. Availability checked 14 June 2026.

Where to watch Monstrum

🇯🇵 Japan

Amazon Prime VideoStream

Amazon Prime Video with AdsStream

Good to know

Director: Huh Jong-ho
Release date: 2018-09-12
Runtime: 1h 46m
Language: Korean
Box office: $5,577,666
Status: Released
Country: South Korea
Studio: Taewon Entertainment

Monstrum — trailer

About Monstrum

Monstrum is a 2018 movie in the Action, Horror and Drama genres, directed by Huh Jong-ho, starring Kim Myung-min, Kim In-kwon and Lee Hye-ri. It has a runtime of 1 hour 46 minutes. It holds an average rating of 6.5/10 from 203 viewers. Below you can see where to watch Monstrum in Japan — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

Ancient Korea, 1506. The tyrannical King Yeonsan-gun of Joseon is overthrown by his half-brother Jung-jong, whose reign begins with a blood bath. Over the years, traitors plot against him, sinking the kingdom into chaos. In 1528, frightened rumors come to royal palace, regarding a mysterious creature, known as Monstrum by the peasants.

Cast

Kim Myung-min

Yun-gyeom

Kim In-kwon

Seong-han / Mulgoe (voice)

Lee Hye-ri

Myeong-i

Choi Woo-shik

Royal Court Officer Heo

Lee Kyung-young

Sim-un

Park Hee-soon

King Jung-jong

Park Sung-woong

Jin-yong

Lee Do-gyeong

Grandpa Song

Lee Kyu-bok

Mo-gae

Kim Joong-hee

Mak-gae

Kim Kang-il

First Vice-Premier

Cho Won-hee

Second Vice-Premier

Themes & keywords

giant monsterbased on true storypalace intrigue16th centuryjoseon dynasty (1392–1910)

Frequently asked questions

Where can I watch Monstrum in Japan?+

In Japan, you can stream Monstrum on Amazon Prime Video and Amazon Prime Video with Ads. It's also available to rent or buy on Amazon Video, Apple TV Store and FOD.

Is Monstrum on Netflix?+

Monstrum is not on Netflix in Japan right now, but you can stream it on Amazon Prime Video and Amazon Prime Video with Ads.

How long is Monstrum?+

Monstrum has a runtime of 1 hour 46 minutes (106 minutes).

Who stars in Monstrum?+

Monstrum stars Kim Myung-min, Kim In-kwon, Lee Hye-ri, Choi Woo-shik and Lee Kyung-young.

When did Monstrum come out?+

Monstrum is a 2018 movie directed by Huh Jong-ho.

What genre is Monstrum?+

Monstrum is Action, Horror, Drama and Fantasy film.

Who directed Monstrum?+

Monstrum was directed by Huh Jong-ho.