Two brothers, scientists Scott and Tony Nelson, develop an amplifier which enables a person to enter a 4th dimensional state, allowing him to pass through any object. Scott experiments on himself and discovers that each time he passes through something he ages rapidly. He begins killing people, sucking out their life energies and regaining his youth as a result.
Robert Lansing
as Dr. Scott Nelson
Lee Meriwether
as Linda Davis
James Congdon
as Dr. Tony Nelson
Robert Strauss
as Roy Parker
Edgar Stehli
as Dr. Theodore W. Carson
Patty Duke
as Marjorie Sutherland
Guy Raymond
as Fred the Guard
Chic James
as B-Girl
Elbert Smith
as Police Capt. Rogers
George Karas
as Sgt. Todaman
Jasper Deeter
as Mr. Welles
Dean Newman
as Dr. Brian Schwartz
