When Sarah wakes up with what she thinks is a terrible hangover, instead she discovers she's suffered a concussion after falling off a skateboard. She's diagnosed with amnesia and has lost five years of memories - including marrying her boyfriend, Kofi; having three kids and moving to the suburbs. What ever happened to the career-orientated, big-city-living advertising ex who loved partying with her girlfriends? Sarah can't imagine herself ever choosing this life full of sacrifices - and she certainly doesn't want it now. Sarah has been painted quite deftly as a flawed character, who needs to undergo an intense journey. She started out rather selfish, self-centred and lacking any maternal instincts, making it difficult to imagine how she could have changed so much in so few years. But I found the book grew on me as a nicer Sarah started to re-emerge.