After the attacks in Paris in 2015, Raphael Mehlman is really aware of his Jewishness. His brother, the writer Joël Mehlman, develops a novel then gets lost between his characters and reality, mixing his fiction and his own life.

The film chronicles Perceval's knighthood, maturation and eventual peerage amongst the Knights of the Round Table, and also contains brief episodes from the story of Gawain and the crucifixion of Christ.