Season 1
Men are lured to a remote hotel under the guise of sexual encounters only to be caught in a trafficking ring where their organs are auctioned off to the highest bidder. After a catastrophic earthquake, the victims, traffickers and buyers all are trapped inside the crumbling building. Cut off from the outside world, they must fight to survive the aftermath at any cost.
01. Ransom
Juyoung and Hyungsoo meet for the first time in room 506. Hyungsoo bargains the price for Juyoung and goes into the bathroom. Meanwhile, Juyoung makes a peculiar phone call with someone and tells Heesook about the appointment.
02. The Detective's Kidney
The auction room is in complete mayhem. Juyoung attempts to negotiate with Heesook, suggesting that they kill the boss and escape together to no avail.
03. 7 Billion
The first floor's exits are all blocked so Juyoung breaks through the emergency exit and disappears alone. Hyungsoo makes it to the second floor with Geukryul's help. They desperately run for their lives from Mr Min and Bookwan.
04. Panic Room
Six hidden bidders show themselves. They become more suspicious when they learn more about Hyungsoo.
05. Guns, Money, Lies
Escaping danger, Juyoung and Hyungsoo arrive in the janitor's room where Juyoung tells the story of her past.
06. Zero Sum
The bidding and intrigue reach a thrilling, fatal conclusion.