When It`s At Night(3977)

Other Title(s)밤이면 밤마다
Everyday Night / When Night Comes / Night After Night
Genre(s)Comedy, Romance
SynopsisKim Bum Sang was a university arts instructor who got passed over for promotion due to lack of family connection. He specialized in examining archeological treasures and all he wanted was to make a name for himself and get ahead in this world. Heo Cho Hwi worked as a supervisor at the Cultural Theft Devision in the hope that it would help her find her father who was a treasure hunter-thief and had been missing for 7 years. The story evolves art thefts and how these two clashes in their pursuit.

(Courtesy of Drama Wiki)