Episode 1
Public Rental Apartment
Her friend from high school, Detective Jung Yi Hyun calls Sae Bom to let her know that a SOU recruit, Lee Jong...
Episode 2
Thirsty Patients
Sae Bom finally gets to be a homeowner. At the end of all her hard work, she thought happiness was just around...
Episode 3
Locked In
Sae Bom thinks Tae Seok is hiding something and feels uneasy about it. The new apartment is peaceful compared...
Episode 4
The Spread
The apartment complex gets walled up and quarantined due to Min Ji's mad person disease triggered by the Next...
Episode 5
The Outsiders
All the apartments within the complex get infected, except Building 101. The phone lines and Internet get disc...
Episode 6
One Man’s Life
After they return from their mission of obtaining food, the people inside won't believe anything they say abou...
Episode 7
The Intruder
An infected person enters Building 101, and once again, Building 101 is under the threat of infection. Lieuten...
Episode 8
Countdown
The apartment complex is now without electricity. Sae Bom and Yi Hyun find traces of an infected person inside...
Episode 9
Dwindling Water
The residents in Building 101 suspect Sae Bom and Yi Hyun are infected and quarantine them in their unit. With...
Episode 10
Kim Se Hoon Disappears
Kim Se Hoon, the guy on the 15th floor, goes missing. Sae Bom and Yi Hyun try to figure out why he disappeared...
Episode 11
Backup Power
Sae Bom and Yi Hyun fall into a crisis due to the resident representative, Oh Ju Hyung, and other residents co...
Episode 12
Happiness Is With You
Sae Bom learns that happiness is not your house but the person you are beside. And that person to her is Yi Hy...