9/10 is my rating. This is a 2020 South Korean science fiction, horror drama with 10, 44-59 minute episodes.

An introvert after extreme bullying, teenager Cha Hyun-soo (Song Kant) loses his entire family in a car accident. Despondent and suicidally depressed, Hyun-soo moves into a large apartment building and continues his life of solitude. That is until strange things begin occurring in the building and he and his neighbors must rely on each other to survive. Something is causing people to turn into horrible, blood thirsty, destructive monsters and it is hard to know who to trust. Martial law is declared throughout South Korea but this little micro chasm of humanity must endure and fight both the monsters within as well as out.
Cha Hyun-soo (Song Kang). A teenager who lost the will to live after losing his entire family, finds himself in a hell like existence where humans turned monster roam about and it is hard to know who to trust. Winds up becoming part monster but is able to control it giving him superhuman powers.
Pyeon Sang-wook (Lee Jin-wook) no one is quite sure who he is but he is willing to do what others will not and punish evil doers as he sees fit. He looks rough and gangster like in appearance with a heavily scarred face. He is abnormally strong and ruthless.
See Yi-kyung (Lee Si-young) a character created for the drama (not webtoon) she is an expert martial artist who served in special forces and was also a fire fighter. After her fiancé vanished mere sprays before their wedding, she has trust issues.
Lee Eun-hyuk (Lee Do-Hyundan) is th self designated leader of the group of survivors whose cold rationality makes his leadership strong but cause there’s to consider him unfeeling. He is a medical student and older brother to Lee Eun-yoo (Go Min-si) a former ballerina who has a chip on her shoulder as she had to quit due to an injury.
Jung Jae-heon (Kim Nam-hee) A devout Christian who wields a sword, Normally a mild mannered Korean language teacher, he is diligent and fearless in the defense of others.
Yoon Ji-soo (Park Gyu-young) After her boyfriend’s suicide, she moves into the building and tries to keep to herself and keep her bass guitar playing from annoying others.
Park Yoo-ri, (Go Yoon-jung) is a caregiver for one of the apartment’s residents and her medical knowledge is a valuable asset to the group of survivors who are frequently injured while battling the monsters.
Ahn Gil-seob Kim Kap-soo) he is recklessly brave as he is terminally-ill. Park Yoo-ri Is his caregiver and knows his grumpy facade hides his caring nature.
Han Du-sik (Kim Sang-ho) Former military man with skill in creating weapons. Although bound to a wheelchair his a kill with weapons makes him an invaluable member of the group..
Kim Suk-hyun (Woo Hyun) is both mentally and physically abusive to his wife. He owns a grocery but is reluctant to share food even in the apocalyptic scenario. He frequently creates tension in the group.
Ahn Sun-young (Kim Hyun) She is meek and beaten down as Suk-hyun's wife. The group supper gives her the strength to stand up to him.
Cha Jin-ok (Kim Hee-jung) continued attempts to open the door and escape in order to locate and save her teen daughter repeatedly puts the group in jeopardy.
Kim Su-yeongm ((HeoYool) is a small child (9 Years Old) who along with her brother Kim Yeong-su (Choi Go; 6-year-old) lost their father when he was attacked by a monster while attempting to repel down the side of the building to get them food.
Son Hye-in (Kim Gook-hee) considers her Pomerania; Bom, like her child and continually carries it.
Im Myung-sook (Lee Bong-ryun) devastated since losing her child when the baby’s stroller got loose and rolled into traffic.
Choi Yoon-jae (Go Geon-Han) pretends to be kind to hide among the group from Sang-wook. But he is a human monster of another sort, a Child Predator.

if Movies in the horror genre are your thing then this will likely fit the bill. The monsters were definitely scary and horrific and the fact that the people turn into monsters was in and of itself frightening . That type of transformation was reminiscent of the American movie “The Thing” though only vaguely so. It was interesting the way the people both had to work together while not completely trusting each other to be able to make it through. I liked that there was that central character, the teenage boy, and that he was unique and that he had the monster in him yet was largely able to control it. The series was well paced throughout most of it until towards the end when it got a little chaotic and felt like a lot of people were dying very rapidly. There were also aspects that were not well explained such as why the fire fighter character was suddenly with the military at the very end. The fact that she was working with them had been revealed earlier but it did not seem like she had given them what they wanted enough that she would’ve been able to join them completely. The gangster guy was very different in the television series than in the webtoon where he was more of a goofy character and much more likable. For the most part they stuck to the webtoon enough that it was clear that it was made based on it and yet deviated enough to make it work in the television format. They left it open for more seasons as everything was not wrapped up and in the fact there is additional story line in the webtoon indicates that there is story left for more episodes to the series or another season. I’m not sure why they decided to only do 10 episodes, 16 or more episodes would have allowed for a more complete telling of the story.