Childhood soulmates, Georgia and Holly, are only a few weeks into the so-called best years of their lives at Edinburgh University, when Georgia gets drawn into an elite clique of alpha girls, led by lecturer Jude Monroe. Jude’s brand of feminism is alluring, just like the circle of bright students she surrounds herself with. Georgia's effortless entry into the clique leaves Holly out in the cold. But Holly's jealousy soon escalates to panic as Georgia begins acting erratically. Alarmed by this transformation in her best friend, Holly is compelled to follow her into Jude’s closely-guarded circle.