In a refined New England boarding school, four teenage girls navigate the complexities of adolescence. Fernanda, a thoughtful and introspective student, returns to Tanner Hall to find her world disrupted by the arrival of her childhood friend, Victoria. Victoria's rebellious and manipulative nature soon creates tension, as she attempts to reclaim her role in Fernanda's life while simultaneously stirring up trouble. Meanwhile, Fernanda forms a clandestine relationship with an older man, which adds a layer of secrecy and emotional turbulence to her already tumultuous school experiences. The tight-knit group, including adventurous and outspoken Kate, along with the impressionable and naive Lucasta, begins to fracture under the strain of hidden desires, jealousies, and betrayals.

As the girls grapple with their changing identities and future aspirations, they face the consequences of their actions in an environment rife with academic pressures and social expectations. Their once seemingly unbreakable bond is tested as they confront emerging adulthood and the realization that their decisions have far-reaching implications. Through moments of rivalry, intimacy, and self-discovery, each girl must navigate the path from innocence to maturity, ultimately learning valuable lessons about friendship, loyalty, and self-acceptance.