Exorcism, the devil is back

Exorcists don't just exist in the movies. Requests for consultation are on the increase. Beyond the fantasies and frightening images, we went to meet these devils of men within the Catholic Church, in the Jura and Valais, but also in the evangelical community. Who are these demon hunters? What is their relationship with the Devil? Is exorcism a means of deliverance from evil, or a technique of control?