The Red Riding Trilogy (AKA The Yorkshire Killer Trilogy) is a three-part film adaptation of English author David Peace's Red Riding Quartet. Set against a backdrop of serial murders during 1974–1983, including the Yorkshire Ripper killings, the books and films follow several recurring fictional characters through a bleak and violent world of multi-layered police corruption and organized crime. The quartet comprises the novels Nineteen Seventy-Four, Nineteen Seventy-Seven, Nineteen Eighty and Nineteen Eighty-Three. The first, third, and fourth of these books became three films — Red Riding 1974, Red Riding 1980, and Red Riding 1983. They aired in the UK on Channel 4 beginning on 5 March 2009 and were produced by Revolution Films. The three films were released theatrically in the US in February 2010.