An attorney arrives at a castle to settle the estate of its recently deceased owner. The owner's wife and daughter reveal that he was someone who was able to summon the souls of ancient plague victims and, in fact, his spirit was roaming the castle at that very moment. Soon occupants of the castle begin to die off in gruesome, violent ways.
| Actor | Role |
|---|---|
 Barbara SteeleCleo Hauff | Cleo Hauff |
 Walter BrandiAlbert Kovac | Albert Kovac |
 Mirella MaravidiCorinne Hauff | Corinne Hauff |
 Alfredo RizzoDr. Nemek | Dr. Nemek |
 Riccardo GarroneJoseph Morgan | Joseph Morgan |
 Luciano PigozziKurt - the Gardener | Kurt - the Gardener |
 Ennio BalboOscar Stinnel | Oscar Stinnel |
| RRenato LupiArchivist of the town hall | Archivist of the town hall |
| TTilde Dall'AglioLouise - the Maid | Louise - the Maid |
| IIgnazio DolcePoliceman | Policeman |
| LLucio ZariniNot listed | Not listed |
| PPiero SartoriNot listed | Not listed |
| AArmando GuarnieriIvert / Ivatch | Ivert / Ivatch |
 Pietro MartellanzaMorgan - Assistant (uncredited) | Morgan - Assistant (uncredited) |
 Antonio PierfedericiInspector (uncredited) | Inspector (uncredited) |
 Umberto RahoDr. Hauff (uncredited) | Dr. Hauff (uncredited) |