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.

Kang Ji-won, a terminally ill cancer patient, is killed by her husband and best friend after she witnesses them having an affair. She wakes up 10 years before the incident and decides to seek revenge with the help of Yu Ji-hyuk, a director at the company where she works. Now, she must reclaim her fate and eliminate the trash from her life.

A prisoner on death row in the US, a vicar in a quiet English town, and a maths teacher trapped in a cellar cross paths in the most unexpected way.

The top 0.01% of students control law and order at Jooshin High School, but a secretive transfer student chips a crack in their indomitable world.