Dr. Wilfred Glendon, a botanist, is attacked by a mysterious creature in Tibet. After returning to London, he begins to transform into a werewolf every night, wreaking havoc on the city. His only chance for a cure lies in a rare Asian flower, the Mariphasa.

Werewolf of London
A botanist's quest for a rare flower in Tibet unleashes a trail of terror in London, culminating in a chilling revelation: a bloodthirsty werewolf is the serial killer.