Detective Lee Da-il (Choi Daniel), who catches ghosts, tries to solve the case of his assistant, Jung Yeo-wool's (Park Eun-bin) younger sibling's bizarre death.
Detektif Lee Da-il (Choi Daniel), yang menangkap hantu, mencoba memecahkan kasus asistennya, Jung Yeo-wool's (Park Eun-bin) atas kematian aneh saudara kandungnya yang lebih muda.