Harper, a single mother, has been raising her son Finn—conceived during a one-night stand with Wall Street tycoon Julian six years prior—on her own while working as a food delivery driver. After landing a job at Julian’s company, she falls victim to her cousin Serena, who steals her identity and repeatedly attempts to sabotage her. Julian gradually falls for Harper, and the elder Thorne discovers that Finn is of the Thorne bloodline. Following a pregnancy with twins and the eventual exposure of Serena’s malicious schemes, the couple holds their wedding, and the imposter Serena is taken away by the police.
