4D Man (1959)
Research scientist Robert Lansing discovers the secret of penetrating solid matter when he accidentally opens a fourth dimension thanks to an electric motor stirring up his brainwaves.
Entering a sordid life of crime due to his power, he must keep replenishing his life force by passing through the bodies of others or else suffer from premature aging.
Passable special effects make this novel effort from The Blob (1958) team reasonably engaging despite some overwrought acting and plot inconsistencies.
Irvin S Yeaworth Jr