Netflix has unveiled the official trailer and poster for its new, historical horror action series, 'Gyeongseong Creature', set in Gyeongseong (modern day Seoul) in the spring of 1945. 

In the trailer, a sly information broker named Jang Tae Sang (played by Park Seo Joon) teams up with a skilled missing persons investigator, Yoon Chae Ok (played by Han So Hee), to infiltrate a building shrouded in mystery, Ongseong Hospital. There, they encounter unbelievable horrors hidden behind closed doors, in steel cages, and even deep underground. 

Also starring Jo Han Chul, Kim Hae Sook, Soo Hyun, and more, 'Gyeongseong Creature' premieres in two parts, beginning with part one on December 22. Part two is set for release first thing in 2024 on January 5. 

While you wait, watch the official trailer above, and check out the official poster, below.