In 1990s Shaker Heights, Ohio, the picture-perfect life of journalist and landlord Elena Richardson is disrupted by the arrival of Mia Warren, an enigmatic artist and single mother, and her
teenage daughter, Pearl. Elena rents her rental property to Mia out of a misplaced sense of charity, unknowingly setting off a chain reaction that threatens the meticulously ordered community. Pearl is quickly drawn into the privileged world of the Richardson children—Trip, Lexi, Moody, and Izzy—while Mia takes a job at a local
Chinese restaurant, befriending a desperate undocumented coworker named Bebe Chow, whose baby was given up for adoption.As the summer progresses, secrets unravel. Mia harbors a deeply guarded past involving her own artistic beginnings and the surrogate birth of Pearl, whom she fled with to protect her from a wealthy couple, the Ryans. Meanwhile, Elena struggles with her repressed resentment toward her own domestic life, particularly her rebellious youngest daughter, Izzy, who finds a kindred spirit in the unapologetic Mia. The simmering tensions in Shaker Heights reach a boiling point over a high-profile custody battle involving Bebe’s abandoned daughter, Mirabelle, who has been adopted by Elena’s wealthy friends, Linda and Mark McCullough.Mia takes a stand, supporting Bebe and sparking a bitter community divide that exposes deep racial and class prejudices. Elena, fiercely defending the adoptive parents, digs into Mia's past as a journalist, eventually discovering the truth about Pearl’s birth and Mia’s flight from the law. Driven by a desperate need to maintain control and prove her moral superiority, Elena weaponizes this information, confronting Mia and effectively blowing up both of their lives.The climax arrives when Elena’s explosive confrontation with Mia forces everyone to reckon with hard truths. In a final act of rebellion against her mother’s suffocating control, Izzy, having learned of Elena’s cruel betrayal of Mia, pours gasoline around the Richardson home and sets "little fires everywhere." As the mansion goes up in flames, the Richardson children stand outside watching their privileged life burn, while Mia and Pearl are already on the road, escaping the wreckage. The fire destroys not only the physical house but also the illusion of perfection, forcing Elena to confront the devastating consequences of her judgment and control, leaving both families forever changed and emotionally liberated from the constraints of their pasts.