The Girl on the Train was a fun read for me. The story was excellent and the three narrators, which I loathed them so much, were very interesting to read. They had different voices and thoughts, and they were not perfect whatsoever. 
 I don't want to reveal about the plot and characters too much without spoiling it. You just need to read this book immediately. I never read a thriller book, so if you want to read a something that keeps you guessing while enjoying and the same time, read THE GIRL ON THE TRAIN 
 *Full review soon*