Shanghai is an emerging city, and there has always been a group of people living at the bottom of society. They are the parents of this city, they have the past of this city, and they are always the backbone of the city. The protagonist Chen Ran graduated from college and came to Shanghai to work hard. He met and fell in love with his wife Wen Li here. Until they got married and had children, everything was business as usual. When Wen Li's cousin in Australia came to visit, everything changed. Wen Li ignored her family's objections and went abroad to study. One day three years later, Wenli returned from abroad, but she was inseparable from a foreign man. Chen Ran didn't even have a chance to talk to his wife alone. He was worried that Wenli was being coerced, so Chen Ran chose to call the police. Ever since she had a physical relationship with Mrs. Tian, Chen Ran had the shadow of Mrs. Tian in her heart and was always thinking of ways to give gifts. He saw the spiritual outlook of this group of people living at the bottom of society, and his heart was filled with sunshine and they faced life positively. After her mother returned to her hometown, Sister Tian also quit her job, and Chen Ran lived a single life again. At her mother's urging, Chen Ran found a girlfriend, Xiumei, online. After they met for a while, Chen Ran accompanied Xiumei back to her hometown to celebrate the New Year. Chen Ran gave Xiumei's parents a gift of 20,000 yuan, and slept with Xiumei that night. However, Chen Ran did not do anything between men and women, and Xiumei was grateful. But when Chen Ran returned to Shanghai, Xiumei disappeared. At this point, Chen Ran was alone again. He lingered countless times at the overpass in the center of Shencheng City, a place he often visited after he and his wife Wen Li met and fell in love. One day, he discovered a familiar figure. He was convinced that the figure was his former wife Wen Li, and he chased after her desperately...
