In 1518, Strasbourg witnessed a bizarre epidemic where people danced uncontrollably for days, some until death. This mysterious event remains one of history's most fascinating cases of mass hysteria.
In 1922, six members of the Gruber family were brutally murdered at their remote Bavarian farmstead, Hinterkaifeck. The killer lived in their home for days after the murders, creating one of Germany's most chilling unsolved cases.
