In the beautiful city of London, a house-hopping English secret agent conducts dangerous missions that aren't for the faint of heart. However, after a mission goes astray and he results in having to save a bystander, he asks to take temporary residence inside of their home to conduct the completion of his missions undetected. The bystander turns out to be a rich and rather Self-righteous fashion designer from the US. Her reluctance to take him in is eventually lifted, and the two of them are set to live out their two different lifestyles under one roof. A dangerous life compared to a lavish life drowning in riches makes for a rollercoaster of a ride in this romantic-comedy action story. She's too bitter and selfish for him, and His actions are too venturesome, reckless, and sometimes dashing for her. Two opposites like this are bound to cause a war. But could there be a calmness within the storm? Find out in: UNDERCOVER LOVER