Scientist Dr. Edward Pretorius has developed the Resonator, a machine that allows whoever is within range to see beyond normal perceptible reality. His assistant, Dr. Crawford Tillinghast, activates the machine and sees strange creatures in the air. He is bitten by one of them. He notifies Pretorious about the machine's functionality. Pretorius, driven by lust for power and knowledge, turns the machine on and becomes mad with the feelings the Resonator causes. The Resonator malfunctions at full power, causing Crawford to panic and flee. When the police arrive, they find Pretorius decapitated, yet no blood. Crawford is arrested for murder.
