An American lover of architecture is escorted to a crumbling Mexican castle by the local padre. He warns the visitor to keep his room door locked and avoid the family that lives there--especially the maniacal mother when the black wind blows. Eventually, the curious American learns the horrible truth about the family's history of blood lust. br br Directed by Robert Stevensbr Starring Rex Marshall, Robert Emhardt, John Baragreybr br Castbr Rex Marshall as Self - Announcerbr Robert Emhardt as Arnold Sachs br John Baragrey as Charles Kincaidbr Mildred Natwick as Nadia Demarestbr Robert H.