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.
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 21 more features.
This was one of Universal's "Inner Sanctum" mysteries.