The story takes place in a city where the female protagonist, Fang Qian, suddenly has a young man visit her home one day. He, like Fang Qian, has a key to her room. He claims that the house Fang Qian currently lives in was sold to him by her boyfriend for a total of 850,000 yuan, and the property certificate is in the process of being issued. Fang Qian is distressed because she cannot find her boyfriend, and she's also troubled by the unexpected guest at her house. Recently, she has been arguing non-stop with Zheng Wenzhong about the house. Zheng Wenzhong is also feeling troubled; he bought a house and wants to move in, but there is a woman living in the room, which worries him. To make matters worse, his girlfriend knows there is a woman in his new house and is suspicious of his loyalty. His future mother-in-law is also suspicious of him. To clarify the situation, Fang Qian has to team up with Zheng Wenzhong to find her boyfriend, Haoming. Haoming has been missing for many days and no one knows where he is. Since the house has already been sold to Zheng Wenzhong, Fang Qian searches all the places Haoming usually went to but can't find him. Haoming is just a small-time singer, and his regular income is not high. Initially, in order to buy this house and marry Fang Qian, he was still short on money, and Fang Qian proactively borrowed money from someone named Wolf Brother to make the purchase possible. Now, Haoming's disappearance leaves the fate of the house a mystery.