Herz aus Glas | 1976
In a rural community, a local artist known for making brilliant glass sculptures dies without passing on to anyone the skills of his trade. Huttenbesitzer, who owns the town's glass factory, obsessively attempts to recover the deceased artist's lost knowledge. The villagers employed by Huttenbesitzer also become bewitched by the secrets of glass. Despite the warnings of Hias, who claims to be a prophet, the possessed locals slowly descend into madness.