-"Enlevés" is the documentary at the source of 'Enquêtes extraordinaires'. Throughout the world, men, women and children claim to be "abducted by aliens". Some of these people are literally traumatized by their experiences. They have no desire to convince their entourage of the veracity of the phenomenon. They are aware of the absurdity of what they say, what they think they live. They call for help. "Experiencers" is an encounter with these men and women, everyday people, normal, sincere, helpless, who all tell the same unimaginable experience. It is also the portrait of an exceptional man: John E. Mack. John Mack was a distinguished doctor of psychiatry, one of the most respected professors at the prestigious Harvard American University (USA), Pulitzer Prize in 1977, and founder of the Psychiatry Department at Cambridge Hospital. After studying a hundred cases, John Mack published in 1994 the result of his research in a book called "Abduction" that is like a thunderclap. The diagnosis of John Mack - confirmed by various studies and psychiatric tests performed by other teams - is upsetting: these people do not suffer from any mental pathology. They are not crazy. They are sincere. Soon we discover that no satisfactory theory can explain what happens to them. Something physical and external seems to interfere in their existence. But what ? John Mack died accidentally on September 27, 2004. A few weeks after this tragedy, a ceremony in his memory gathered in the walls of Harvard's Memorial Church in Boston, all of his friends, high-level scientists, teachers, anonymous and - abductees. This is where the movie begins.