This film is the first investigative documentary of its kind about the dark side of a previous glamorous industry. It deals with the mysterious death of a British pilot, heavily injured flight-attendants and passengers, cover-ups and near air disasters: "UNFILTERED BREATHED IN - The Truth about Aerotoxic Syndrome" focuses on the partially slow intoxications caused by extremely dangerous chemical compounds within the jet-turbine engine oils of modern aircraft, which can get into the cabin breathing air. Most people are not aware that this breathing air aboard jet aircraft is directly taken of the turbine engines and comes unfiltered into the cabin. For a long time it has been suspected that these compounds can cause irreversible nerve damage.