"Motive, Opportunity, Means," by Mark Bastable, in The Thrill List, edited by Catherine Lea, Brakelight Press, 2016.
John Fuller left his wife for his secretary. Said wife did not take it
well. Now she has plotted an elaborate revenge, and Fuller's future
depends on the shrewdness and determination of an overworked cop named
Pinski who just wants to spend some time with own wife.
this description sounds a little sparse, you are right. I don't want
to give away any of the secrets of this marvelous, convoluted plot.