The year is 1918. This tale revolves around a man named Alan Allenby and how on St. Kilda's Cay he is drawn into a dangerous criminal operations involving synthetic morphine-style drugs. Allenby does not want to get involved but does want to protect the lovely Guilda Six from the enigmatic and sinister Chaplain Septimus Six. Norroy Yorke plays a very needed part helpful to Allenby.