The Man Who Turned to Stone (1957)

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.

Directed by: László Kardos

Starring: Victor Jory, William Hudson, Charlotte Austin, Jean Willes, Ann Doran, Paul Cavanagh

Links: Columbia Pictures, IMDb, Movie posters, Movie stills