"Game, Set, Match," by Zoe Burke in Bound by Mystery, edited by Diane D. DiBiase,Poisoned Pen Press, 2017.
Macy Evans is a middle-aged woman who has just been kidnapped by a younger man. He has locked her in his basement and his plans for her future seem vague, or rather changeable. They seem to involve his wife and Macy's husband, and one or more persons leaving this mortal coil. And you can bet that will happen.
This story has a sizeable plot hole (unless I am missing something). But I liked the style and suspense.