Laura's son Daniel introduces his new love Cherry. As Laura tries to welcome her, she notices Cherry lying and begins digging. Cherry conceals her past while navigating elite London circles and trying to win Laura's approval.

Cherry joins her boyfriend's family vacation, jealous of his sister Laura. Tensions rise between the women until a yacht incident brings them closer. Their new bond shatters when Laura discovers Cherry's secret.

Laura digs into Cherry's past as they vie for Daniel's love. After a fight with his mother, Daniel spends his birthday with Cherry. Alone, Laura turns to an ex-until a call changes everything.

Laura discovers she was right about Cherry and takes her family to Spain, lying about Cherry's absence. In London, Cherry's life falls apart, leading her to live with her mom and scheme to reclaim her life.

Cherry and Daniel's romance shows strain as Laura meddles. After a tense family visit, Laura gains ammunition against Cherry. The conflict escalates into a fierce confrontation with Daniel caught between them.