In 1956, Colin Clark, an eager and inexperienced young man, lands a job on the film set of "The Prince and the Showgirl," a production starring the iconic Marilyn Monroe and directed by the distinguished Sir Laurence Olivier. Thrilled to be part of the movie world, Colin finds himself in the midst of tension and chaos as Monroe struggles with her insecurities, frequent lateness, and erratic behavior, which frustrates Olivier and complicates the production. As he observes the clash between Olivier's meticulous professionalism and Monroe's mercurial temperament, Colin is drawn into the glitz and turmoil of Marilyn's life, forming a unique bond with the troubled star.

Monroe, dealing with the immense pressures of fame and the emotional turmoil of her personal life, finds a confidant in Colin. He becomes captivated by her vulnerability and charm, providing her with solace during her moments of distress. Over the course of a week, Colin witnesses a side of Marilyn rarely seen by the public, as she oscillates between her on-screen persona and her real, fragile self. This brief yet impactful connection profoundly affects Colin, shaping his perspective on fame, love, and the complexities of human nature.