Billionaire heir Alan, hiding his identity as a taxi driver to investigate his mother's death, has a one-night stand with CEO Tessa. Years later, Tessa returns with their daughter, seeking a marriage of convenience to save her company. Alan happily steps into the role of husband and father. When Tessa's family endangers their daughter and humiliates them, Alan drops his disguise. His father, the richest man in the nation, arrives to back them up, shocking everyone and destroying their enemies.