The Church of Rome proclaims itself the one true religion so the Pope sends Inquisitors of Heretical depravity to find the heretics and get rid of them. The village of Montaillou is taken prisoner including the village priest.
The Inquisition moves to Spain in 1468. The King and Queen proclaim themselves Catholic Monarchs and start an Inquisition. Jews who have converted are accused of trying to destroy the religion. An inquisitor is assassinated which only leads to more killing.
The Inquisition in Italy in 1522. The Pope tries to exterminate the "heresy" of the Protestant Reformation. Leaders in the Catholic Church are arrested and accused of reading banned books.
The secret files of the Inquisition are locked away. A Spanish priest dedicates his life to exposing the records of the Inquisition. The painter, Goya, depicts the Inquisition in his artwork. Napoleon conquers Italy and abolishes the Inquisition and sends the files to Paris.