Season
- Season 1 2021-11-05
Episode
- Episode 1: Public Rental Apartment
- Episode 2: Thirsty Patients
- Episode 3: Locked In
- Episode 4: The Spread
- Episode 5: The Outsiders
- Episode 6: One Man’s Life
- Episode 7: The Intruder
- Episode 8: Countdown
- Episode 9: Dwindling Water
- Episode 10: Kim Se Hoon Disappears
- Episode 11: Backup Power
- Episode 12: Happiness Is With You
Happiness Season 1 The Intruder
A new type of deadly virus spread throughout the city, and the apartment where has different social classes of people is sealed off. With the fear of the virus, and the conflicts of the different classes, the residents have to spend and survive in the new habitation.
