From Goodreads.com:
EVERY DAY THE SAME
Rachel takes the same commuter train every morning and night. Every day she rattles down the track, flashes past a stretch of cozy suburban homes, and stops at the signal that allows her to daily watch the same couple breakfasting on their deck. She’s even started to feel like she knows them. Jess and Jason, she calls them. Their life—as she sees it—is perfect. Not unlike the life she recently lost.

UNTIL TODAY
And then she sees something shocking. It’s only a minute until the train moves on, but it’s enough. Now everything’s changed. Unable to keep it to herself, Rachel goes to the police. But is she really as unreliable as they say? Soon she is deeply entangled not only in the investigation but in the lives of everyone involved. Has she done more harm than good?

My review:
Yet another book that I’m certain I’m one of the last people on the planet to have JUST read it. And I didn’t even realize it was being made into a movie until I downloaded and wondered why the F Emily Blunt was on the cover. Either way, I digress …

So, The Girl on the Train is/was referred to frequently as the “next Gone Girl.” I personally think that Gone Girl is the better read out of the two, but that’s not to say that The Girl on the Train was bad; the characters weren’t just as captivating for me as Gone Girl’s. I found Rachel to be messy and irritating, and Anna just drove me bananas. And what happened with the guy with the red hair? I felt he would’ve had a bigger role in the end, but apparently not.

Still, I found myself chewing through the pages because I just needed to know who did it, and the guilty person surprised me a little. Hawkins did a great job keeping me guessing, I just wished the characters were more likeable. There wasn’t a single character that made me think, “She/he COULDN’T have done it, I like them too much!”

Overall, I’m giving The Girl on the Train 4 stars out of 5, only a half-star less than Gone Girl.