The soul of a Korean firefighter (Cha Tae-hyun) travels to the underworld after he's killed in an accident. If he wants to reincarnate, he must go through seven trials with the help of three protectors (Ha Jung-Woo, Ju Ji-Hoon, and Hyang-gi Kim). Kim Yong-hwa wrote and directed this fantasy drama, which is adapted from a webcomic by Ho-min Ju.