Carl Adams (reporter); Professor John Dean (research scientist, death); Dr. Rance Radfield (research scientist, Dean's partner, death)
Reporter Adams visits a convicted murderer in his cell, and he is warned by the doomed man that the reporter must warn the world that mankind is about to be wiped out. It seems that Dean and Radfield had isolated a mutant disease cell that was alive, and which had mental and physical properties unknown to science. When Dean sent high voltage through it, there was an explosion and the cell grew and literally overtook Dean's body. Radfield fought the creature, but was arrested for killing Dean while the creature escaped. He pleads with Adams to warn the world, not realizing Adams is a creature.