Happiness (Season 1)

Happiness (해피니스, 2021) is a Korean thriller series you can watch online on iFILM. Han Hyo-joo plays Yoon Sae-bom, a no-nonsense special forces officer who agrees to a fake marriage with straight-arrow cop Jung Yi-hyun (Park Hyung-sik) — just to secure a unit in a new apartment block. The world outside is already grinding through years of pandemic fatigue.

Then their building gets sealed overnight. A mutant strain turns some residents into something between human and predator, driven by an uncontrollable thirst. Twelve episodes trap the cast — people from wildly different income brackets — behind a single wall, where the virus turns out to be a smaller threat than the neighbors themselves.

Directed by Ahn Gil-ho, the series layers zombie-thriller suspense over a sharp look at class resentment and collective paranoia. Stream all episodes of Happiness (2021) online on iFILM.