Intern Chloe has a one-night stand with CEO Ethan and flees in panic, leaving behind her sister Mia’s portfolio. Mia seizes the chance to impersonate her and becomes Ethan’s fiancée, while Chloe accidentally ends up as his secretary. Working closely, Ethan is drawn to Chloe’s sincerity, sparking Mia’s jealousy and relentless schemes. With colleagues’ help, Chloe exposes the truth. Ethan, remorseful, passionately pursues her; they find happiness together, and Mia gets her just deserts.
