Scotland Yard must discover why people are being murdered by a monstrous dog at Blackwood Castle.
Heinz Drache
Humphrey Connery
Karin Baal
Jane Wilson
Horst Tappert
Douglas Fairbanks
Siegfried Schürenberg
Sir John
Agnes Windeck
Lady Agathy Beverton
Ilse Pagé
Miss Finley
Mady Rahl
Catharina Wilson
Uta Levka
Dorothy Cornick
