As she tries to piece together what has been going on, Hannah begins to realise how little she knows about her smart, successful husband of eight months. His parents are dead and he is estranged from his brother; the friends of his she has met are relatively new ones, he doesn't encourage conversations about the past. Who is he really?
The first part of the story is all about the slow seeding of doubt and fear. We're inside Hannah's head and piecing everything together with her. But the pace ratchets up as she begins to uncover the things Mark hasn't told her and fair zooms along to a dramatic climax.
"Marriage thrillers" is what novels like this have been dubbed. It's a genre made popular by Gillian Flynn's mega-bestseller Gone Girl and, judging by the similarities in cover design, its publishers are hoping this book will appeal to the same market. Unfortunately, it suffers in comparison.
It's not as twisted or as twisty; its characters are less likely to surprise you, it's simply not as finely tuned or as complex.
Before We Met is still a page-turner, however; a chilling and disturbing one that delivers thrills and spills enough and should keep you guessing to the final pages.
Will it make you question how well you know your own spouse? I doubt it but it may leave you feeling that a little predictability isn't such a bad thing.