The Monster She Married by Bekka Scott

What if the wife knew everything?
Not just about the bodies and where they’re buried.
Not just about the lies.
But about the way silence settles in a room after something terrible happens, about how to pay attention to the stillness, and how to watch closely enough to understand what most others miss.
 
Now, the police think the case is closed. The town thinks Cora Grimes is harmless. Her therapist believes she’s healing.
But Herbie was only the first ripple.
Now, she is the wave.
 
If you love unreliable narrators, morally corrupt women, and dark domestic thrillers where the wife may be worse than the killer… you’ll never see this ending coming.