A pseudo-documentary which centers on the search for the hero from the title. Everyone has a different opinion about Filip, starting from his father to the woman he loved. The search shows that everyone has as many characters as there are people who know him.

In 1212, a Children's Crusade is launched after a young shepherd, Jacques de Cloyes, claims to have had a vision in which it is said that the innocence of children would be able to liberate Jerusalem. A monk, returning from Holy Land, joins the crusade and hears the children's confessions, gradually realizing that most of them are taking part not for religious, but for more worldly reasons, like rejected love and hopes for freedom, the true nature of their enthusiasm is homosexual. In fact, if the children follow Jacques, it is more for romantic than religious reasons. They take literally the famous phrase: “Love one another”.