Childhood soulmates Holly and Georgia are in their first term at university in Edinburgh. But when impressionable Georgia is drawn to an elite clique of young women, Holly is sceptical, sensing a more sinister bond between the girls than friendship.

Holly is cooler, calmer and more cautious than the effervescent Georgia, who willfully throws herself into the madness of first year.

When the two attend an electrifying lecture by hotshot Economics Professor, Jude McDermid, both find themselves considering their future and the possibility of applying to Jude's elite internship scheme. Georgia's determined to get in with the powerful and glamourous clique of alpha girls surrounding Jude, and Holly starts to feel left behind.

But as both girls enter the social whirl and lavish parties of the Clique, their friendship is tested. Holly senses something sinister behind the glittering facade.

Holly is ready to start her new life as part of Jude's clique. But as Georgia continues to push for a competitive position at Solasta, Holly remains suspicious - a feeling that gets stronger when she starts to receive warning messages from a mysterious stranger.

As the pressures mount on Georgia, Jude and her other girls pull tight, clinging to their old loyalties and turning a blind eye to the extraordinary circumstances around them.

But on an evening out things come to a head - and both new and old friendships find themselves tested to breaking point.