A thrilling new whodunnit series, fast-paced and funny, featuring a detective as sharp as his suits and a heroine who’s trouble. The River Thames always gives up its dead… There’s a killer picking off victims from the wild swimming spots on the upper reaches of the Thames.The case takes Detective Inspector Leo George into the path of Jess Bridges, a private investigator who lives life close to the edge. Their enquiries lead them to author, Jago Jackson, whose book on secret wild swimming spots has turned him into a social media celebrity.Is Jago’s book the blueprint that the murderer is following?If so, does that make Jago a target or the killer himself?Either way, the duo find themselves swimming in some very dangerous waters …