The Woman in Cabin 10

The fact that it took me 3 months to finish this says something. I really dislike the new trend to make a female unreliable narrator with alcohol. Lo got it under control and ended up being a decent person, but I wondered which is why I set the book aside. I was all prepared to give it a 2 star review, but I ended up liking it more than that.
The setting is good. The suspects abound. The how was it done is clever. The escape is exciting. And the ending you think happened didn't. And neither did plan B. So the author keeps you guessing.