죽기 전 마지막으로 뮤지컬 무대에 서고 싶다는 세희의 소원을 들어주기 위해 모두가 마음을 모으는데 뜻밖에 의사 치훈이 이를 방해하고 나선다.
Although Tae-shik’s attempt to persuade Gyu-tae seems meaningless, Gyu-tae suddenly changes his mind for some reason. Hence, the preparations for Se-hee’s musical officially begin. Meanwhile, Gyeo-re is still obsessed with what is in Room 403. Although he knows that the ghost is a lie, he is still curious.