In the fifth year of her marriage, Qin Baiwei discovers at a class reunion that the mysterious wealthy husband her best friend Zhao Xiaoying keeps talking about is actually her own husband, Xie Zechuan. On a night of heavy snowfall, she crouches by the roadside studying a bike-sharing pass, helplessly watching Xie Zechuan arrive in a Maybach to pick up Zhao Xiaoying. When she returns home to pack her things, she realizes that her five-year marriage has been lived according to a philosophy of discounts: Diaopai soap, discount coupons, and an aurora dream reduced to watching documentaries. She sells her house at a low price and decides to leave, but Zhao Xiaoying arrives at her door pregnant, while her mother, Li Yue'e, reveals a secret that has been hidden for five years inside a locked private dining room. After being framed, Xie Zechuan publicly calls her a madwoman, transfers away their savings, and drives her out into the pouring rain.