Byun Deuk Su

Byun Deok-Soo has a higher intelligence than his brother Byun Deok-Jeon, who is mentally retarded.
He lives in room 307.
He is a man in his 30s, about 175 cm tall. He is usually casual and unkempt, wearing striped T-shirts and shorts, and jeans in colder weather. He has dark eyes and very short dark hair. He has a fairly strong back and broad shoulders. He has problems with psychological development, and often giggles inappropriately.
Byun Deok-Soo exhibits behavior that reflects his complex character and the atmosphere that reigns in the Eden Dormitory.
Dok-Soo, like the other residents, behaves mysteriously and unusually, which creates an atmosphere of tension. His actions can be unpredictable, which makes other characters and the audience doubt his true intentions. His relationship with his brother Byun Deok Jeong also plays a major role in his behavior. Deok Soo, being highly intelligent, can show concern for his brother, but can also use him for his own gain.
Like many other characters in the series, Deok Soo can have his own secret intentions and hidden aspects of his personality, which makes his behavior even more complex and multi-layered.
The bedroom's atmosphere of fear and mistrust also affects Deok Soo's behavior. He can show aggression or defensive reactions in response to threats from other residents.
Giggles often.

Deok-soo and his twin brother, Byun Deuk-chun, have a special relationship. Deok-soo, being more intelligent, can be caring towards his brother, but can also use him for his own gain. This creates a dynamic where Deok-soo can be both protective and manipulative.
Seo Moon-jo, Deok-soo's roommate in room 304, is also an important character. Their interactions can be tense, as Moon-jo comes across as a friendly person, but is actually hiding his true intentions. This creates an atmosphere of mistrust between the two.
The dorm's landlady, Uhm Bok-soon, also plays an important role in the lives of the residents. She may appear friendly, but is actually hiding dark secrets. The relationship between Deok-soo and Bok-soon can be complicated, as she runs the dorm and has influence over all the residents.
Hyun Nam-bok, a resident of room 313, is a porn addict, which makes his interactions with Dok-soo even more tense. Nam-bok may be the target of ridicule or scorn from Dok-soo, as his behavior and habits do not conform to the norms of the dorm. The relationship between the two is based on misunderstandings.

The Eden Dormitory, where the drama Strangers from Hell takes place, is an ominous and dark place full of strange and suspicious residents.
The Eden Dormitory is uninviting and unsettling. It is filled with unfamiliar and sometimes dangerous neighbors, creating an atmosphere of comfort and safety.
Eden is a low-cost housing scheme that affects people looking for affordable housing, as well as those who may not be quite normal.
There is meat in the refrigerator in the kitchen that is human. All the residents of the Eden dormitory are involved in the teaching of people from whom the flesh is made. The meat cuts are prepared by the owner, Ohm Bok Soon.
The Eden Dorm is located in a desolate and gloomy area, creating a sense of isolation and danger. Its exterior and interior design reflect desolation and decay, which adds to the overall unsettling atmosphere.
The dorm is filled with mysteries and horrors, including questions about what really happens to the residents and what secrets are hidden behind the walls.
Residents sometimes disappear in Eden, usually killed by the boarders and the landlady.
It is forbidden to go up to the fourth floor, since this is where all the murders of residents who have displeased the boarders in any way occur.