Enjoyed this book by French which is not quite a sequel but has some of the same characters from her first novel In The Woods. This story has a weird murder with an improbable twist: the dead girl looks exactly like one of the detectives. This sets an undercover plot in motion which, like in the last novel, goes somewhat wrong because the characters are people with real feelings and emotions, not dull cop automatons. Whether this works for you or not will probably affect how much you like it, but I enjoyed it a great deal.