Malik El Djebena (Tahar Rahim), a French Arab who's been in and out of jail and juvenile institutions since he was a kid, has just been sent to prison for a six-year sentence.
He's 19 now. Still a kid.
But not for long.
In Jacques Audiard's extraordinarily powerful A Prophet (Un prophète) - a Cannes festival winner and foreign-language Oscar nominee - Malik enters the dark, medieval-looking penitentiary without friends or allies, without knowing how to read or write, and, after a mugging, without his sneakers, either.
Malik's rise becomes a daunting odyssey through the ruling order behind bars, where an old Corsican, Cesar Luciani (Niels Arestrup), controls the black market (and, it seems, the warden and guards), and where a group of Muslims tend to their respective criminal affairs.