"Let’s go, babe.” “Excuse me?? I was just making my way through!! SiHyuk, who was able to get a studio with good conditions, suffers from insomnia due to frequent lover’s quarrel between the couple next door. Then one day, he runs into the couple who happened to be having a dispute out in the hallway. SiHyuk gets involved with one of the two, JaeHee, and ends up becoming his pretend lover. With JaeHee’s ex, SoWool, being obsessive with JaeHee and acting like a stalker, what kind of fate awaits for SiHyuk and JaeHee who got into a pretentious relationship to shake SoWool off...?