After reading this thriller by Clare Mackintosh, I am glad that I don’t travel on England’s Underground every day. Greed fuels a website, FindTheOne.com, that runs in tandem with a daily classified dating ad in the London Gazette, featuring pictures of differently aged women. Only these pictures are posted without the individual’s knowledge, in a bizarre dating game. The women are commuters on London’s subways, and the host of the website sells subscriptions to the site, which lists information on each woman, to any man willing to pay the price to join. When Zoe Walker sees a photo of herself in the adverts, she begins to worry. Especially when she connects a murder to one of the photos. A fast moving plot will keep you guessing until the very end, with an unexpected horrifying twist. A great read for fans of this genre.