Hyuk-Jin has just broken up with his girlfriend. As he drinks himself away at a bar, he promises his friends he’ll take a trip with them to a small town called Joengseon. The next day, however, he ends up making his way to the destination alone. Little does he know that this was only the beginning of his bizarre journey. Hyuk-Jin gets dragged into a chain of “booze parties” by the many people he encounters on the way. He must now find a way to escape the world’s worst hangover and end the big drunken adventure, but…