After several people and a dog are found dead in their closets a "mild-mannered" reporter, a college professor, her son and a befuddled professor band together to uncover the mystery but not without involving the U.S. Army and mass panic.
Donald Grant
as Richard Clark
Denise DuBarry
as Professor Diane Bennett
Henry Gibson
as Dr. Philip Pennyworth
Paul Walker
as 'Professor' Bennett
Claude Akins
as Sheriff Sam Ketchem
Howard Duff
as Father Martin Finnegan
Donald Moffat
as General Franklin Turnbull
Paul Dooley
as Roy Crane
John Carradine
as Old Joe Shempter
Frank Ashmore
as Scoop Johnson