The last thing Louise Doors remembers is collapsing on her way home from a gig and a boy trying to save her life. Now, six days later, she's woken up. But she's not in the hospital, she's at home, and it seems her life has gone on without her, except everything is messed up.

Her best friends hate her, she's hanging out with a girl she barely knows, and a boy called Dylan wants to meet up to give her a letter. As it turns out, Dylan isn’t just any boy, either, he’s the guy who tried to save her life.

Soon Louise will find out exactly what's been going on in her absence because those missing days are happening again, only in reverse. While each day brings surprising revelations about her family and her friends, Louise draws closer to Dylan, hoping he can help her get her proper life back. But she hadn’t expected to fall in love, nor that these six days might be all she has left.

After years of conforming to other people’s expectations, Louise finally has the chance to be true to herself—but only if she can reach out and grab it.