Based on clues, the team realizes the Director has been hiding within other dead bodies. Lan Zhu plants the room number 502 onto his host, and the ghost nurse kills the host. The Director leaves the host’s body and faces the wrath of the nurse. Meanwhile, the team realizes the key is with the baby doll, which the ghost nurse has taken. She hates the world for her fate and soon goes after the team as well. (Source: frankly at MyDramaList)