Roberto, a drummer in a rock band, keeps receiving weird phone calls and being followed by a mysterious man. One night he manages to catch up with his persecutor and tries to get him to talk but in the ensuing struggle he accidentally stabs him. He runs away, but he understands his troubles have just begun when the following day he receives an envelope with photos of him killing the man. Someone is killing all his friends and trying to frame him for the murders.

New York, 1920. Deux Italiens, Nicolas Sacco, cordonnier, et Bartolomeo Vanzetti, marchand de poissons anarchiste, sont arretés et accusés du meurtre de deux hommes commis au cours d'un hold-up. Fred Moore, leur avocat, démontre leur innocence mais le procureur et le juge développent une argumentation imprégnée de xénophobie et de paranoïa antibolchevique. Le jury condamne à mort les deux Italiens.