The story of Austrian, Johann "Jack" Unterweger, who wrote a book about his criminal past while serving a life term in prison for assault. In 1974, Unterweger murdered 18-year-old German citizen Margaret Schäfer by strangling her with her own bra, and in 1976 was arrested and sentenced to life in prison.
In the 16th century, young men put themselves in great danger to look for mysterious crystals in a tunnel in the Styrian Erzberg. Some of them never returned from searching for this symbol of perfect love. In the 20th century, the student Barbara tries to pursue this legend of her home town.
