Book Club

[Alter Ego]

Is it The Breakdown by B.A. Paris?

I listened to this on Audible and, other than a brief memory of it, just remember that I needed to speed it up just to finish it!

Disregard my suggestion.  I should have finished the OP's post!  Haha.  The first part sounded like this one, so I stopped midway.  😊

[Janey2]

Could it be The Other Woman’s House by Sophie Hannah?

[ritasNo1Fan]

It's GIRL ON A TRAIN.   Emily Blunt is in the movie.  Excellent stuff here!  (Did you read THE WIVES?)

Oh wait....she was not a real estate agent in this story.  She was unemployed because she was a drunk and she had dillusions and hangovers.  And just took the train every day for the heck of it.  There was a dead women though....

[newtoallthis]

@rissajaneen 

It sounds like The Girl on the Train by Paula Hawkins.  (I clicked on here in error! Your post title got me curious!). I used to be an avid reader. If this isn't it, I highly recommend it. One of the best I've read! 

Hope this helped!