The Man Who Turned to Stone

The Man Who Turned to Stone (1957) is a horror, science fiction directed by László Kardos rated 5.2/10.

A new social worker at a girls' reformatory discovers that her charges are being used by a group of ancient alchemists, who have insinuated themselves as the prison's chief staffers, to keep themselves alive and free from an insidious petrification, which is already afflicting one of their number.