Just found this one on the ereaderiq 'newly kindle-ized' list:
[ETA: am seeing some references to Christian fiction in the reviews, so, just a heads-up...]
Ghostwriter by Travis Thrasher
For years Dennis Shore has thrilled readers with his spooky bestselling novels. Now a widower, Dennis is finally alone in his house, his daughter attending college out of state. When he's stricken by a paralyzing case of writer's block and a looming deadline, Dennis becomes desperate. Against better judgment, he claims someone else's writing as his own, accepting undeserved accolades for the stolen work. He thinks he's gotten away with it . . . until he's greeted by a young man named Cillian Reed--the true author of the stolen manuscript.
What begins as a minor case of harassment quickly spirals out of control. As Cillian's threats escalate, Dennis finds himself on the brink of losing his career, his sanity, and even his life. The horror he's spent years writing about has arrived on his doorstep, and Dennis has nowhere to run.