Rotten Apple: Suspense thriller in Bloomington, MN

Alexander thinks it will be easy to break up with his mistress because he has done it many times before with other women. But, Karen is different. She doesn't want to be dispensable and decides to use Alexander's wife in her plans. His wife doesn't suspect anything, which is perfect for Karen. Nothing can stand in the way of her happiness. Or, so she thinks. After her beautiful plan is in place and she assumes everything is under her control, things begin to take a different turn. Suddenly, nothing is under her control. Skeletons are pulled out of everyone's closets and lives are destroyed.
In this book no one is innocent-until proved otherwise.