Detective Yoon Cheo-yong was born with the supernatural ability to see, hear and touch ghosts. He solves mysterious, unsolved cases along with tough and passionate colleague Ha Sun-woo, and Han Na-young, the ghost of a high school girl.

Oh Ji-ho, Jun Hyo-seong, Ha Yeon-joo, Ju Jin-mo, Yoo Seung-mok, Yeon Je-wook, Kim Kwon, Jeong So-yeong