Forty years after his accidental death on March 11, 1978, Claude François's life still holds many secrets, including the existence of a hidden daughter named Julie Bocquet, who lives in Flanders. Now 40 years old, she speaks out for the first time and reveals how she discovered her parentage. Also featuring testimonials from Jean-Pierre Foucault, Dave, singer Stone, Clodette Prisca, and Fabien Lecœuvre, author and biographer.