The Woman in Cabin 10 by Ruth Ware

I enjoyed reading this mystery suspense thriller.  Lo Blalock, a journalist gets a chance of a lifetime job break when she gets sent on a cruise when her co-worker who could not go.  Things begin to go wrong even before the cruise and when she witnesses what must have been a crime on the cruise ship, things go really wrong.  It kept me guessing the whole time and I was thrown off by the plot twists and turns.