1958. The last year debutantes will be presented at court to the young Queen Elizabeth and officially come out into society. To appease her traditional mother, aspiring university student Lily Nicholls agrees to debut and do the Season - a glittering and gruelling string of endless balls and cocktail parties.
There she befriends two women: aloof Leana Hartford, whose apparent perfection hides a darker side, and ambitious Katherine Norman, who dreams of a career after helping her parents find their place among the elite.
But the sparkle of the Season dims when Lily learns a devastating secret that threatens to destroy her entire family. Faced with a murky past, what will she choose for her future: her family legacy, or her own, uncertain happiness?