Louisa is at a music festival and the sun is blazing down. She is there with her best friends, her charismatic bad-boy boyfriend Dan, and her backstage pass - for a long-weekend of carefree hedonism.

Aged 30 and editor on a style magazine, her life is a parade of free tickets and gigs, openings and all-nighters, drug and alcohol-induced happiness. But cracks have begun to appear beneath the surface. Dan is acting erratically, her family is in the midst of a crisis, and she's missing deadlines at work.

In the surreal micro-climate of fancy dress, pear cider and 48-hour friendships, Louisa has a meltdown. But with a little help from Matt - one of life's good guys - she has one last chance to get her life back on track.