Scotland Yard must discover why people are being murdered by a monstrous dog at Blackwood Castle.
Heinz Drache
as Humphrey Connery
Karin Baal
as Jane Wilson
Horst Tappert
as Douglas Fairbanks
Siegfried Schürenberg
as Sir John
Agnes Windeck
as Lady Agathy Beverton
Ilse Pagé
as Miss Finley
Mady Rahl
as Catharina Wilson
Uta Levka
as Dorothy Cornick
Hans Söhnker
as Anwalt Robert Jackson
Otto Stern
as Kapitän Wilson
Alexander Engel
as Doc Adams
Tilo von Berlepsch
as Lord Beverton
