1 Musim
12 Episode
해피니스 - Season 1
- Tahun: 2021
- Negara: South Korea
- Aliran: Drama, Misteri, Sci-fi & Fantasy
- Studio: tvN, TVING
- Kata kunci: survival, apocalypse, zombie, disease, apartment building, illness, zombie apocalypse, virus, fake marriage, slow burn romance, apartment
- Direktur: Han Sang-un
- Pemeran: 한효주, 박형식, 조우진, 이준혁, 박주희, 백현진