Two bumbling Americans stumble on the discovery of a lifetime when their search for a mummy leads them to a sacred medallion that holds the key to buried treasure.

After botanist Wilfred Glendon travels to Tibet in search of a rare flower, the Mariphasa, he returns to a London haunted by murders that can only be the work of bloodthirsty werewolves.

The ancient Egypt Mummy, Kharis, is transported from his homeland with the high priest Mehemet to wreak vengeance on the family who has defiled the sacred tomb of his beloved Princess Ananka.