After a fateful encounter in the summer of 1966, the lifepaths of two brothers from a middle-class Roman family diverge, intersecting with some of the most significant events of postwar Italian history in the following decades.
On December 12, 1969, a bomb kills 17 people at the Piazza Fontana national bank in Milan, Italy, marking the beginning of the Years of Lead. Local anarchists are scapegoated for the massacre by police and the media, but a lone prosecutor uncovers a conspiracy of far-right groups, corrupt secret services, and other interests that seek to undermine democracy.
The life of a Northern Italian middle-class family is turned upside down after their 12-year-old son falls overboard during a sea trip, only to be picked up by a boat of illegal immigrants.
