The Naked Eye, by Henriette Martin & Gita Lewis (epub/Kindle/pdf)
Take a nice guy with healthy instincts...put a dead man's eyes in his head...and you have the recipe for a nightmare!
Zachary Anders meant no harm. He was a blinded veteran who had been willed the eyes of an executed murderer. But with Zachary's regained sight came an obsession -- he had the clear the name of the dead man who had allowed him to see again.
When Zachary began to look around, trouble started. He saw a foul nest of assault, kidnapping, blackmail, and murder. And when he began to act, he was plunged into a screaming spiral of madness that almost cost him his sanity -- and his life!