Hyun-su and some of his fellow residents band together within the confines of the complex and must fight for their survival against the new, otherworldly threat, while others from the apartment turn into monsters based on the things they desire.

Efforts by governmental and scientific bodies to understand and possibly cure the monstrous transformations continue, adding another layer of intrigue and hope for the characters.

[27][28] Lee Eung-bok revealed that, during Song Kang's audition, the actor reminded him of Johnny Depp in Edward Scissorhands: "an image of someone who has a pure and innocent soul but is holding a spear in his hand.

[26] Park Gyu-young admitted that she did not have high hopes about being picked for the series but "as soon as [she] left the audition set, the director called [her] and said to leave with a script.

[31] Designers from Legacy Effects, VFX Studio Westworld and Spectral Motion, who worked on films such as the Avengers and Avatar as well as the television series Game of Thrones and Stranger Things, were recruited for Sweet Home.

[37] Kavya Christopher of The Times of India gave a rating of 4/5 and said, "One does not need to be a lover of the horror genre to enjoy this series, thanks to the many underlying plots of the various characters – both big and small.

"[39] Pierce Conran of South China Morning Post gave a rating of 3/5, saying that "despite a breathless opening episode and some grisly fun throughout, Sweet Home does not provide much of a story for viewers to get hooked on.

"[40] In another mixed review, Meagan Navarro of Bloody Disgusting said that "what sprints out of the gate and sets up an exciting creature-filled horror series quickly comes to a slow crawl zombie apocalypse that we've seen many times before.

"[41] Sweet Home was the first South Korean series to enter Netflix's Top 10 in the United States,[25] reaching as high as third.