Zhou Li is a successful businesswoman who devoted herself entirely to supporting her husband's family after marriage—only to be relentlessly bullied by her mother-in-law Liu Aizhen and sister-in-law Sun Xuejiao. At an upscale club, Sun Xuejiao publicly slaps Zhou Li across the face—and even assaults Zhou Li's son Sun Yu when he tries to protect his mother. Her husband Sun Zhiqiang watches silently, refusing to intervene. Pushed beyond her breaking point, Zhou Li flips the table and walks out with her son, vowing to divorce.