Nam Jinwoo knows all too well what it's like to play second fiddle to his lifelong rival, Ma Sangtae. Even in the workplace, their paths have converged. But the curious thing about passion is that it can take many forms. What began as envy and loathing has gradually transformed into something altogether different - something Carnal, tantalising, and unmistakably erotic. Before he can make sense of it all, Jinwoo finds himself consumed by a flood of lewd and lecherous daydreams, each one featuring none other than Sangtae himself. Helpless to resist their pull, Jinwoo knows that putting a stop to these fantasies may ultimately be tantamount to betraying his deepest desires...