I'll Be Watching You by Charles de Lint

Rachael Sorenson feared she would never escape her ex-husband's abuse. Then a passing stranger came to her rescue---a stranger who had watched her from afar.
He was a photographer, and Rachael was his perfect subject. He lived only to make her happy---and eliminate those who didn't.
Now he wants more than her beauty. She owes him her life---and he means to collect. From Goodreads.

This was scary as I hate anything about stalking. It doesn't help that the book is seen both from the victim's and the perpetrator's POW. We follow them both and the further into the story the more scary it gets. To me it is the knowing that the bad thing is going to happen and anxiously waiting for it that is scary. It was not an enjoyable read but it scared me as it was meant to.

This book qualifies for:
Goodreads Reading Challenge 2015
FrightFall RaT 2015
Romance Readers Reading Challenges: Word Hunt 2015
Wacky Reading Challenges: Word Search 2015
Wacky Reading Challenges: Mini Challenge 2015
The Challenge Factory: Scavenger Hunt Part XVI
Rawk-A-Tiers: Scavenger Hunt
Rawk-A-Tiers: Companion Challenge 2015
Rawk-A-Tiers: House Games
Rawk-A-Tiers: Travel Around the World
Rawk-A-Tiers: Reading by the Numbers
A Million More Pages: Breast Cancer
A Million More Pages: Scavenger 2015
A Million More Pages Hogwarts: Dragon Nursery
Crazy Challenge Connection: Pick a Theme 2015-2016
Wacky Reading Challenges: Locations A-Z