When deaf-mute Ryu loses his job at the factory, the timing couldn't be worse: his seriously ill sister urgently needs a kidney transplant, for which the siblings lack the necessary money. When a deal with criminal organ traffickers goes wrong, Ryu and his girlfriend Yeong-mi only see one way out: they kidnap the daughter of wealthy factory owner Park Dong-jin in order to extort the money for the transplant. But an unexpected catastrophe sets off a bloody vendetta in which there can be no winners.