I was a night shift security guard at Building 3 in Chengzhong Village. On a rainy night, I found my grandfather's body behind Gate 404. He was holding a jujube stick in his hand, and a note in his pocket said, "There is a ghost behind the door, protect Ayuan." When he turned around, the doorknob was stained with black blood, and a girl in gray cloth came out of the closet - she was the ghost guarding the building, and she was almost dispersed by the evil spirit behind the door. Developers raised evil spirits to demolish buildings and bury tenants' old belongings under the walls. Those who were bitten shouted "open the door" frantically, and the management sent them to a nursing home. I can see ghosts, but I am afraid of the bleeding door, but I am even more afraid of her disappearing - I will hit anyone with a locust branch who touches my ghost wife, even if there is an evil spirit on the other side, I will fight! The security guard not only protects the village in the city, but also the ghost girl I want to protect for the rest of my life!