Gwang-tae is pressured to pay his debt by a loan shark, and finally decides to sell his liver for the money. He asks his friend Gil-do to make an arrangement, and is contacted by yakuza who want to save their dying boss. But Gil-do disappears with Gwang-tae's money, and Gwang-tae holds out against the gang, saying he is not going to Japan until he catches Gil-do. So Gwang-tae and the yakuza chase after Gil-do, and in turn, the loan shark chases them.
The plot concerns Guard Point 506, where an entire squad of soldiers have been killed in mysterious circumstances, bar one survivor who's in a coma. Military Investigators are dispatched to the base, and discover they're dealing with a virus that turns humans into ravenous flesh-eating killers!
A crystal meth dealer with a tragic past is forced to team up with a renegade cop to take down a powerful crime lord.