This gory low-budget British outing involves a team of archaeologists landing on fog-shrouded Snape Island -- recently the site of a hideous double murder -- in search of the tomb of a Phoenician chief and subsequently falling victim to an unseen maniac. Accompanying the shore party is a private detective (Bryant Halliday), hired by the family of the young woman suspected of the crimes (Candace Glendenning), who is determined to get to the bottom of the mysterious murders. Though it is eventually determined that the real killer is still at large, the archaeologists stubbornly refuse to abort their dig...and summarily suffer the consequences. Released originally in 1972, this crass, exploitative potboiler (based on a story by horror author George Baxt) found its way to American theaters in 1981 as Beyond the Fog in an attempt to cash in on John Carpenter's 1980 film. Released later to video and cable as Tower of Evil.