Actual rating: 3.5 
 First line: "The egg-shaped timer was on the welcome mat when she came home." 
 Well that was a ride! I really enjoyed Stephanie Perkins Anna series when I read it way back when, so I was eager to read something that was different from her contemporary romance. 
 This book actually does have a romance that plays a large role in the story, but it's the creepiness and constant tension that really makes the book excel. Stephanie did a fantastic job at creating an atmosphere that constantly had me on edge, and I definitely had chills, despite most of this being read on public transit. 
 While I raced through the first half of the book, I thought the rest lost some steam and lacked a little something to make it really special. (view spoiler)[The early reveal of the killer might've have something to do with its lackluster finish, as well as the motivations behind the bloody rampage. The reason was really dumb, to be honest. (hide spoiler)] Luckily, the tension was still there and so thick you could cut it with a knife. 
 A fun story, perfect for Halloween, but doesn't really bring anything new to the horror genre.