Nothing is as it seems behind the well-trimmed hedges of the picturesque cottages in the idyllic English county of Midsomer. Beneath the tranquil surface of sleepy village life exist dark secrets, scandals and downright evil. John Nettles stars as the humorous, thoughtful and methodical Detective Chief Inspector Barnaby. When Barnaby's favourite rock band, Hired Gun, reform to play a gig at the Midsomer Rocks Festival, paranoid lead singer Gary Cooper is convinced that someone is trying to scare them off and stop the reunion. The guitarist Jack "Axeman" McKinley and the rest of the band are staying at Gary's estate, Badger's Hall, while they are in town. As accidents appear to happen around the band members, will Barnaby catch the killer before they are all dead?