Betrayed by an informant, Philippe Gerbier finds himself trapped in a torturous Nazi prison camp. Though Gerbier escapes to rejoin the Resistance in occupied Marseilles, France, and exacts his revenge on the informant, he must continue a quiet, seemingly endless battle against the Nazis in an atmosphere of tension, paranoia and distrust.
When French criminal Corey gets released from prison, he resolves to never return. He is quickly pulled back into the underworld, however, after a chance encounter with escaped murderer Vogel. Along with former policeman and current alcoholic Jansen, they plot an intricate jewel heist. All the while, quirky Police Commissioner Mattei, who was the one to lose custody of Vogel, is determined to find him.
Amid a tense political climate, the opposition leader is killed in an apparent accident. When a prosecutor smells a cover-up, witnesses get targeted. A thinly veiled dramatization of the assassination of Greek politician Grigoris Lambrakis and its aftermath, “Z” captures the outrage at the US-backed junta that ruled Greece at the time of its release.
