A working class family move into a new condo purchased after 11 years of hard work. They throw a housewarming party to show his co-workers when overnight a heavy downpour creates an extremely deep sinkhole that engulfs the entire building.
Man-soo
Dong-won
Manager Kim
Yeong-e
Eun-joo
Kyung-mi
Seung-tae
Grandma Oh
Manager Jung
Hyo-jung
Soo-chan
Seong-hoon
Min-jun
Director Seo
Seong-hoon's Mother
Fire Chief
Young Mother
Husband
Neighbor
Landlady
Rescue Worker 5
Helicopter Pilot
