Gu Xiaojiao (Tong Liya), an older young woman living in 2018, dreams of marrying a rich man who can afford the mansion she had when she was young, but she has been frustrated and can only live in an old residential building. Lu Ming (Lei Jiayin), who lives in 1999, holds a grand blueprint designed by himself, but he can never find an investor and is also facing a major career crisis. A strange moment has come. When the two frustrated people return home, an amazing scene actually happens. The same door is closed and it turns out to be the intersection of two time and space. Two people from different time and space meet. In order to save their future, the two discuss their plans and start a series of measures to fantasize about getting rich overnight, which triggers a ridiculous chain reaction. What they don't know is that the overlap of the two time and space is artificially manipulated. Every step they take will lead to unpredictable results. What's more deadly is that the two people who originally regarded each other as money-making partners sparked a spark of love...