A Turn of the Blade — Veronica Sweeney

HER THOUGHTS OF REVENGE BECAME A DARK NIGHTMARE...
Book editor Sarah Stanforth dreams of vengeance against Erica Tudor, the stunning young author her husband Keir has fallen in love with. Fuming and plotting, she drives north from Manhattan, intending to confront Erica in her country home. But fate has other plans for Sarah. Stopping by chance in the quaint Canadian town of St. Claude, she impulsively buys a house, and begins a new life.

WILL SHE GET AWAY WITH MURDER?
Sarah is finally healing from Keir's betrayal, when out of the blue, Erica shows up at her isolated farmhouse brandishing a gun. During a violent struggle, Sarah reaches for an ax, and in a haze of fear and fury, brutally hacks her rival to death. Knowing no one will believe she killed her husband's mistress in self-defense, Sarah secretly buries the body in the backyard. But her conscience won't let her rest--and neither will the handsome local cop who's been asking too many questions. Now, pulled further and further into a terrifying spiral of guilt and paranoia, Sarah will do anything to avoid discovery...