Meredith, Alone by Claire Alexander

A best friend in Sadie.
A beloved cat in Fred.
Jigsaws to fill the time.
Recipes to perfect.
Even a weekly visit from the Tesco delivery guy.

So what if she hasn't left the house in 1,214 days? That her memories are treacherous, and it's getting harder to ignore the estranged sister knocking at her door.

How long can one woman keep the world out?
How long before she invites in what's out there?
And how long does it take to discover the person you were meant to be?