Neatly expressionistic mood piece about a mad scientist/sculptor trying to keep his afflicted daughter from turning to stone by transfusing her with the blood of local babes. The storyline (a favorite of European horror films - THE AWFUL DR. ORLOF and EYES WITHOUT A FACE also had to do with a mad scientist trying to save a deformed daughter at the expense of anyone within reach) has holes thick enough to bowl a woman's severed head through, but the film is great on atmosphere and ambiance. Completed without credit by Mario Bava after director Giorgio Ferroni began it, the Mondo Macabro DVD version includes the uncut French edition (massacred in bad US VHS prints till now). This film was one of two that reportedly started the Eurohorror boom of the '60s and '70s, of which Bava was a primary maestro.