Lin Qian was greedy for cheap and rented a haunted house, but she met Shen Xingze, a cunning roommate who was very fussy about his position. He charged a fee for cooking, washing dishes, and running errands. One person and one person gradually understood each other in the ridiculous "fighting", and Shen Xingze helped her many times when she was unemployed and in interview crisis. But did this ghost roommate with obsessive-compulsive disorder, venomous tongue, and warm-heartedness really die of gas poisoning as rumored online? What secrets does her past hide?