Sorcerer Dr Craven (Vincent Price) is disturbed by a talking raven! He discovers that the raven is a fellow wizard who has had a spell put on him, after much messing about a potion turns the raven back into Dr Bedlo (Peter Lorre). He tells him the evil Dr Scarabus (Boris Karloff) did it, Craven and Bedlo head off to Scarabus' castle along with Craven's daughter (Olive Sturgess) and Bedlo's son (Jack Nicholson).
Dr Scarabus is a most accommodating host though Craven is shocked to find his beloved wife Lenore (Hazel Court), thought lost, is there alive and well! Scarabus and Lenore have concocted an evil plan to lure Craven to the castle to steal his powers...
It is all very silly and rather campy. At times it can be unbearable but the great cast keeps the film going. The raven is very impressive, but they are very intelligent birds of course.