A faithful retelling of the 1942 "Vel' d'Hiv Roundup" and the events surrounding it.

Divided into four sections, "Song" is inspired by the Siberian and Finno-Ugric legends about Creation, in which the world begins with characters who are only half-human, one being half-bird, the other half-bear. The narrator delves into the origins of Hungarian culture, the Iranian and Turkish influences that impacted the society, and finally the story of Stephen, the emperor who brought Christianity to the country and shifted the capital west in an attempt to link with Europe.

A young refugee, Aryan, is shot while illegally trying to cross the Hungarian border. While tending him back to health, a doctor at a refugee camp discovers that Aryan has gained an extraordinary talent—he can levitate. Aryan is smuggled out by the doctor, who is intent on exploiting his secret.

Spanish photographer Francesc Boix, imprisoned in the Mauthausen-Gusen concentration camp, works in the SS Photographic Service. Between 1943 and 1945, he hides, with the help of other prisoners, thousands of negatives, with the purpose of showing the freed world the atrocities committed by the Nazis, exhaustively documented. He will be a key witness during the Nuremberg Trials.

Abel Nagy works as a sommelier in the restaurant. He recommends and pairs wine with the food ordered. This time guests put him to the test.

In postwar Germany, an American psychiatrist must determine whether Nazi prisoners are fit to go on trial for war crimes, and finds himself in a complex battle of intellect and ethics with Hermann Göring, Hitler's right-hand man.