The series follows Benito Mussolini's early career from his founding of the Fasci Italiani in 1919 up to the assassination of socialist politician Giacomo Matteotti in 1924.

[2] Speaking about the series, Wright stated: I was very careful to tell the truth without being didactic, I tried to understand without sympathizing, maintaining a critical distance... Mussolini was fascinating, he seduced a nation and many others.

[15][16] Other filming locations included the Palazzo Reale and the Teatro di San Carlo in Naples,[17][18] as well as Trieste, Aquileia, Gorizia, and Ruda in Friuli-Venezia Giulia.

[19][20] Not wanting the series to feel like a "stuffy period drama biopic", Wright brought on Tom Rowlands of The Chemical Brothers to compose its score.

"[29] Mauro Donzelli of Comingsoon.it also gave the series five out of five stars, calling it "a marvel" and "an extraordinary parable between the intoxication of violence and the ghosts of power".

Luca Marinelli's work on the character is good, at the center of a cast that manages to offer a complete and multifaceted cross-section of the moment and the figures that brought it to life.

"[34] Elisa Giudici of Gamesurf rated the series 8.5 out of 10 and wrote, "M. Son of the Century is a great serial adaptation that immediately understands that the only way to do justice to its literary source and to history is to betray it from the beginning, conversing with the current audience, making contemporary anxieties resonate in its narration, creating a charismatic, sometimes overbearing identity.

She further wrote, "Starting with Wright's direction, free, impeccable and obsessively attentive to details as to convey the atmosphere, masterfully alternating fiction with repertoire, behind a meticulous work [that is] both historical and visionary.

The pace is incandescent, and the notable writing work, starting from the significant Strega Prize-winning novel by Antonio Scurati and arriving at the excellent screenplay by Stefano Bises and Davide Serino, offers memorable passages, without ever falling into rhetoric and without forgetting irony (fundamental, in a story already historically tragic, dark and violent in itself).