After unwittingly stealing money from a cartel, a cash-strapped professor finds the only way to save his broken family is by working as a drug courier.

An ordinary man, Dong-ha, who is on the brink of bankruptcy and divorce, accidentally discovers a car with a lot of money and takes drugs. The story unfolds as he gets entangled with Gwang-cheol, the second-in-command of the drug gang who is putting pressure on him. Meet the hot energy of two men who have to protect their families and money, respectively.