A Korean man (played by Lee Jin-wook) and a Korean woman (played by Ryu Hye-young) meet up at an online suicide forum. Together they end up deciding, somewhat arbitrarily, that they want to die on an island in Utah, starting from Los Angeles and driving eastwards. They have not planned this trip very well, though they definitely want to kill themselves, so the journey is fraught with self-imposed obstacles as they keep getting stuck along the way.
"Road to Utah" isn't quite a comedy or a drama, vacillating, as the lead characters do, between these two states of mind. The chemistry of the lead actors is defined mainly by the irony of their mutually critical demeanors. A rule is set early on about how they aren't supposed to discuss their motivations, or even their names. This limits the scope of their conversations, so the two end up hunting for other random topics of discussion in the wilderness.