1John Rutherford, bookseller and sometime fiction writer, discovers the bludgeoned corpse of a policeman one evening while taking a stroll in a rainstorm. The policeman's overturned bicycle is what first catches Rutherford's eye. Then he sees Officer Johnson's body sprawled on the sodden ground of Phantom Coppice. Rutherford takes Johnson's bike and pedals to rural Paulsfield police station, two miles away, to report the crime. There he finds Sgt. Martin who initiates calls to a doctor, a photographer and Inspector Charlton.

But it is not these two lead detectives who are the most interesting characters of the book. That honour goes to 19 year-old George Stubbings, assistant at Voslivres, the bookshop Rutherford owns. George is a detective story addict and he is keen on solving the various mysteries surrounding Johnson's violent death. He is both ingenuous in dealing with Rutherford and ingenious in his precocious observations about the apparent murder.

Murder in Blue is the second of Galileo's Clifford Witting's re-issued classic detective thrillers. The first, Catt Out of the Bag, was enthusiastically received by fans of the genre in late 2020.

Clifford Witting (1907-68) was an English writer who was educated at Eltham College, London, between 1916 and 1924. During World War II he served as a bombardier in the Royal Artillery, 1942-44, and as a Warrant Officer in the Royal Army Ordnance Corps, 1944-46. He married Ellen Marjorie Steward in 1934 and they had one daughter. Before becoming a full-time writer, he worked as a clerk in Lloyds bank from 1924 to 1942. He was Honorary Editor of The Old Elthamian magazine, London. from 1947 up to his death.