"You're actually probably not more of a handful than anyone else."
"I See You" by Clare Mackintosh
Plot: Zoe Walker takes the same route to work every day, going to the same train station and the same platform, sitting in the same seat. One day, she sees a picture of herself in the classified ads, along with a phone number and a website, FindTheOne.com. The next day, it's a different woman's photo. And a different one after that. Each day, it's a different woman, and Zoe realizes that it might not be a coincidence, because they've all become victims of increasingly violent crimes. Has someone been watching Zoe? Could she be the next target?