Founder and CEO of one of the country’s largest IT companies, Kim Sun Joo is a name known to all. A true genius in his field, Sun Joo has everything going for him in life. But life at the top brings with it a host of challenges, and some people would stop at nothing to bring him down. In this case, quite literally. Hunted by an unknown killer, Sun Joo becomes the unfortunate victim of a senseless murder. But instead of leaving this world, Sun Joo’s spirit somehow takes up residence in his smartphone. Now trapped inside his phone, Sun Joo might have spent an eternity there, had Park In Sung not stumbled upon it.