Stone Mothers by Erin Kelly

Sometimes you just shouldn't go home again but that is what Marianne does to relieve her sister in caring for their dying mom. She worked hard to get out of the little village, married well and had a fulfilling career but is on the brink of reconnecting with a toxic ex-boyfriend, the hateful mental asylum that now houses her new posh flat and getting pulled deeper into the secrets that drove her away in the first place. Everyone is messed up in this thriller and it just proves that you can never really forget your past nor can you sweep the secrets away forever.