This is one of those stories that you can't say much about as it may give it all away. 

It's a slow and tense psychological thriller with a lot going on. Between the toxic drama at work, the return of an old ex, and her husband and sister's (Clair) suspicious behaviour, things start to take a dark turn for Amber. 

Confined to a hospital bed and in a Coma, Amber graps onto snipits of conversations, willing her fractured memory to piece together what really happened to her. But not everything is as it seems.

I really enjoyed the multipule timelines, switching from the present, the week leading up to Amber's accident and a series of childhood diary entries, all dropping breadcrumbs and leading to the twisty reveal.  

You can find this and a few of Alice Feeney's other books on Kindle Unlimited as well.