Three girls summon a demon. John Sinclair, a British investigator for supernatural phenomena, travels to Germany to meet Kerstin who is the only girl left. But the demon wants to sacrifice her in the old cathedral of Cologne.
John Sinclair
Bill Conelly
Pater Ignatius
Kerstin Müller
Marion Baumann
Viktor Gonsoir
Willi Mallmann
Glenda Perkins
Sybille Thelen
Dr. Hollister
Bernie
Frau Kruse
Petra Klinger
Sir James Powell
SEK-Mitglied