Becca's life takes an unexpected turn when she has a one-night stand with her new boss Andrew. As his assistant, she must balance her professional duties with the secret of their encounter. To make matters more complicated, Becca's foster sister Gigi is mistaken for her and becomes embroiled in a fake relationship with Andrew. Andrew, oblivious to the mix-up, starts to develop feelings for Gigi, which creates tension between Becca and her foster sister. Meanwhile, Becca struggles to keep her distance from Andrew while navigating her new job and trying to maintain her professional composure.