It was unfortunate that I read this book straight after a Laurie Graham one. Graham's characters are so vibrant, they make the people in this novel seem cardboard by comparison.
That was a problem, because there is very little plot - it's basically an examination of the psychological impact of the train crash on two women. To be truly effective, it needed an author like Tamar Cohen, who is brilliant at letting her characters tell their own stories while somehow revealing the emotional damage, delusions or outright lunacy they're trying to keep hidden (or are barely aware of themselves!). That would have lent more menace to Anne-Marie's story and more tension to Holly's. As it was, both women seemed bland.
The main thing that annoyed me, though, was that there was far too much pluperfect in Holly's narrative, both for flashbacks and - especially annoying - for filling in skipped scenes.
Nothing wrong with flashbacks - but in her case, they usually served only to show how good her marriage had been. They contained more factual detail, and less emotional detail, than was necessary. For instance, a flashback about making passionate love on a Spanish holiday told us why they were there (linked to a work trip), what the waiter said, yadda yadda yadda...and then the passionate love scene was covered in one sentence!
I don't know why the author found it so necessary to skip scenes. Perhaps she felt they were too short, or someone told her not to include scenes which don't carry the story forward - but whatever the reason, it was jarring to have the author drop in to provide a paragraph in her voice, saying "this is what you missed". In most cases, she could have had Holly reflect on recent events, or have someone cover it in the dialogue, which would have kept me in Holly's narrative.