Due small print, I got a proof copy from Transworld by asking nicely on Twitter.
Rachel is the girl on the train, and she’s an unemployed, recently divorced alcoholic who is getting the train because she used to work in London and that’s what she does. The whole framework of her life has collapsed and she has no idea how to put it back together again, and this is her way of treading water. Rather than paying attention to her own life, she creates a story around the lives of a couple whose house the train passes, and who coincidentally live on the street where Rachel used to live with her ex-husband. I think anyone who has ever commuted regularly will know the idle speculation that goes on as you become familiar with snapshots of other people’s lives, so this way into the story really appealed.
And then the woman from the couple, Megan, disappears, and Rachel thinks she has information relevant to the investigation because one morning, as the train passed Megan’s house, she saw her kissing a man who was not her husband.
But, Rachel is a thoroughly unreliable narrator. Not only does she have blackouts after drinking, but she’s been behaving a bit crazily towards her ex-husband,Tom, and his new wife, Anna. The police have multiple reasons not to trust her, but Rachel is a bit obsessed with Megan and she won’t give up. It’s as if she wants to protect the fantasy life she’s created for her, so she starts her own investigation.
There are some good twists, so I’ll avoid spoilers. I like this as a thriller and also as a character study of someone who has fallen pretty far down the ladder and might just be on her way back up. Rachel isn’t entirely sympathetic but somehow, Megan’s disappearance gives her something to seize onto. Seeing it through offers her some sort of redemption, even as she continues to screw up any remaining friendships along the way. She’s also not the only unreliable narrator; pretty much all of the characters are hiding something and so the reader’s understanding shifts as Rachel starts to piece together the truth and her own part in it.