A serial killer who drains his victims of blood is on the loose and London police follow him to a house owned by an eccentric scientist.

Top Cast

Vincent PriceDr. Browning

Christopher LeeFremont

Peter CushingMajor Heinrich Benedek

Judy HuxtableSylvia

Alfred MarksDetective Supt. Bellaver

Michael GothardKeith

Anthony NewlandsLudwig

Peter SallisSchweitz