Black klansman : race, hate and the overcover investigation of a lifetime

En anglais. What happens when a black detective goes undercover in the KKK ? An extraordinary true story. In 1978, Ron Stallworth is the first black detective in the history of the Colorado Springs Police Department. In the local paper, he finds a classified ad for the Ku Klux Klan - and a P.O. box for interested enquiries. All he's expecting are some racist brochures and a few scraps of information about the white nationalist terrorists in his community.
Launching an undercover investigation of incredible audacity, Ron recruits his partner Chuck to play the 'white' Ron Stallworth, while Stallworth himself talks to the Klan over the phone. During his months-long investigation, Stallworth sabotages cross burnings, exposes white supremacists in the military, and even manages to deceive the KKK "Grand Wizard" David Duke himself - dodging danger and reprisal at every turn...