50-year-old single mother Anne loses her house after mortgaging it for her son's wedding. Homeless and desperate, she flash-marries Leonardo, a self-proclaimed "poor plumber." After marriage, she discovers he is the 10th-generation heir of the Windsor family—a trillion-dollar financial empire. Even more unexpectedly, the girl who set them up, Rebecca, turns out to be Bella, her biological daughter lost 20 years ago. From a lower-class mother humiliated by her in-laws and deceived by her daughter-in-law into donating a kidney, Anne rises to become the wife of a billionaire—and reclaims her long-lost family.