ट्रिविया

Fourth of the six INNER SANCTUM features, shot June 19-July 1, 1944, and released June 29, 1945, on a double bill with "The Jungle Captive, " both copyrighted 1944.

There are no ghosts here and no one is frozen here. Title choice remains unclear.

Lon Chaney Jr. and Elena Verdugo had worked together in the previous year's "House of Frankenstein".

Part of the original Shock Theater package of 52 titles released to television in 1957, followed a year later with SON OF SHOCK, which added 20 more features.

Leading lady Evelyn Ankers was six months pregnant during filming. Costume designer Vera West helped to mask the actress' expanding stomach by supplying veils and muffs.