The film examines the death of the anarchist Giuseppe Pinelli, who fell from the fourth floor of the police headquarters in Milan December 15, 1969, after being stopped following the Piazza Fontana bombing.

• Unitelefilm
• Comitato Cineasti Contro la Repressione
• Gian Maria Volonté
• Renzo Montagnani
• Licia Pinelli
• Luigi Diberti
• Giancarlo Dettori