The Boy Next Door (2017)
Original title: 썸남
The Boy Next Door is a 2017 Korean-language comedy series created by Choi Jae-yoon. It stars Choi Woo-shik, Jang Ki-yong and Jang He-ryung.
Neighbors Kyu-tae and Gi-jae can't seem to escape one another - they discover they have a mutual acquaintance in Min-ah, and they even end up living together.