Lin Xi, a member of a dockside gang, finds himself unintentionally caught in an intelligence war between the Bureau of Investigation and Statistics (BIS) and Japanese invaders due to a key. Alongside his good friend Li Yunfei, they cross paths with Su Nan, a forward-thinking student, and Zhou Yingqun, an upright and principled BIS agent. As the enigma surrounding the key gradually unravels, it sets off clashes among gangs and sparks nationwide turmoil. Amid the turmoil, Lin Xi, Zhou Yingqun, and Li Yunfei form a profound brotherly bond, navigating through life-threatening scenarios.
Writer Qi Lianshan wants to adapt his psychological reasoning novel into a script. After seeing Liu Xia, who successfully guide a woman who wants to jump off a bridge with her psychological knowledge, he invites her to be a consultant . In the process of adapting the novel, Qi Lianshan gets deeply attracted by Liu Xia, and in the end, the two gained a successful career and a beautiful love story.
Four women in Shanghai face personal and professional struggles to improve their lives. Su Mo rebuilds her future after a setback, while her cousin Zhong Sheng seeks change through education. Mo Weiqing pursues love and freedom, and single mother Cong Rong holds firm to her values. Their lives intersect at a thriving commercial plaza, where they navigate challenges and pursue their dreams, with Wang Juan's leadership guiding their journey.