1977. The year of “two sevens”. Britain is preparing for its Silver Jubilee - the 25th anniversary of the coronation of Elizabeth II. Punk rock is in fashion - the Clash and the Sex Pistols. British Airways operates regular flights from London to New York on supersonic Concorde aircraft. John Le Caré's novel The Honorable Schoolboy has been published. The Yorkshire Ripper is gathering a bloody harvest. Prostitutes are being killed in Yorkshire. Police Sergeant Bob Fraser and journalist Jack Whitehead are trying at all costs to find and stop a serial killer. They have one thing in common: both the policeman and the journalist are in love with representatives of the oldest profession from Yorkshire Chapeltown. As the murders mount, it becomes clear that Fraser and Whitehead are the only ones who suspect that the Chapeltown killer is not acting alone.