They act in the shadows, they are extremely secretive and they practise ancient rituals. Secret societies play a far larger role in our everyday lives than we are aware of. Publications like those of bestselling author Dan Brown have brought them back into the limelight. The three-part documentary, ‘Secret Societies’, accompanies historian Dr Marian Füssel on his search for clues surrounding history’s most famous secret societies and conspiracy theories.

Did the Americans really land on the Moon? Who was really behind 9/11? Did Jesus start a family and what's behind theories of attempted world domunation by the Jews? "The Masks of the Conspirators" investigates some of the most famous conspiracy theories of modern times, coming across hald truths and blatant lies, but also some questions that are still unanswered.