It tells the story of a young man, Yoon Jong-woo (Im Si-wan) in his 20s who moves to Seoul after landing an internship in a company. While looking for a place to stay, he stumbles upon Eden Studio, an ominous cheap dormitory and decides to stay there as he is low on money. Though not thrilled about the quality of the place and its abnormal residents, including his next-door neighbor Seo Moon-jo (Lee Dong-wook), he decides to tolerate it until he saves enough money to move out. However, mysterious occurrences start occurring in the studio, causing Jong-woo to start fearing the studio's residents.
A writer who comes from countryside and moves in room 303 at Eden Dormitory after landing a new job at a new company his older friend created.[10][11] He takes Eden Dormitory for cheap price, only to find out that the dormitory isn't just an ordinary dormitory.
A dentist who works near Eden Dormitory and lives in room 304.[12][13] He comes across as a friendly and compassionate dentist; however, things are not what they seem.
Supporting
Yoon Jong-woo's colleagues
Cha Rae-hyung [ko] as Shin Jae-ho, Jong-woo's university senior and now boss.[14]
Kim Han-jong [ko] as Park Byeong-min, Jong-woo's chief at the company.[15]
Oh Hye-won as Son Yoo-jeong, Jong-woo's only female colleague.[16]
Park Ji-han as Go Sang-man, the head of section at Jong-woo's company.[17]
People at Eden Dormitory
Lee Jung-eun as Eom Bok-soon, the owner of Eden Dormitory.[18] She seems friendly but she hides a very dark secret.
Lee Hyun-wook as Yoo Gi-hyeok, a mysterious and cold resident who lives in room 302.[18]
Park Jong-hwan as Byeon Deuk-jong / Byeon Deuk-soo, twin brothers who respectively live in rooms 306 and 307.[19] Deuk-jong is mentally handicapped, while Deuk-soo has better intelligence than his twin brother.
Lee Joong-ok as Hong Nam-bok, a resident who lives in room 313.[18] He is a porn-addict.
Hyun Bong-sik [ko] as Ahn Hee-joong, a thug resident who lives in room 310.[20] He was planning to leave the dormitory and start a new and better life.
Others
Ahn Eun-jin as So Jung-hwa, a policewoman with a degree in Engineering.[21]
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
This drama aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).
Awards and nominations
Name of the award ceremony, year presented, category, nominee of the award, and the result of the nomination
^Kim, Myung-shin (August 31, 2019). "'타인은 지옥이다' 미스터리물 정점 찍을까". Dailian (in Korean). Archived from the original on May 20, 2023. Retrieved September 24, 2019.
^Yang, Moon-sook (September 2, 2019). "오혜원, 인사드립니다 (타인은 지옥이다 쫑파티)". Sedaily (in Korean). Archived from the original on November 17, 2021. Retrieved September 10, 2019.
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