This is a fantastic crime thriller with a unique premise - just like the cover and blurb say.
After remembering that the first chapters are setting the unique premise up you are free to enjoy the detail about settling into a hard life in Sheffield as an ex-con. Can't say too much without letting details out and you really need to read it and think and see if it turns out how you think. Oh - it won't. There are lots of twists and turns, lots of changing who you empathise with. I think I felt most sorry for Harlan's (ex)wife Eve who he constantly ignores and runs from.
The book has many different themes, love, redemption, families, happiness, gambling, paedophilia, murder, abduction.... get it and enjoy!