Grock is an aging clown who meets a boy in the street,Adrien ,who goes to the school he used to go when he was a pupil;he tells him they have the same first name and a long flashback shows the artist's childhood,youth ,and rise to fame. Return to the present with the declaration of war :a scene takes place at the border ,where Grock performs an impromptu show to entertain the scared children(and grown-ups) A father brings his son Adrien to Grock and tells him his boy wants to grow up to be a clown too;the show must go on.