William Sylvester, the "Token Yank" in several low-budget British horror films of the 1960's (before his rise to fame as Dr. Heywood Floyd in 2001: A Space Odyssey), stars as a grieving widower (both his wife and child were killed in a car accident) who takes an unusual and hazardous job accompanying an archaeologist (
Edward Underdown) and his daughter (Diane Clare) on a North African tomb-hunting expedition. After their arrival in Morocco, they learn of legends involving a Moorish vampire who haunts the tomb. Before long, the lonely Sylvester has succumbed to the seductive wiles of a mysterious woman (Alizia Gur), who begins to bend him to her will. It is left to Clare to come to his rescue, but her attempts place her in even greater jeopardy; ultimately it is Sylvester who must break free of Gur's evil clutches and destroy her himself. This passable vampire yarn makes good use of the exotic location but suffers from lethargic performances and a slack pace. ~ Cavett Binion, All Movie Guide