Industrialist François Delambre is called late at night by his sister-in-law, Helene Delambre, who tells him that she has just killed her husband, André. Reluctant at first, she eventually explains to the police that André invented a matter transportation apparatus and, while experimenting on himself, a fly entered the chamber during the matter transference.
Stars: [David Hedison/Patricia Owens/Vincent Price/Herbert Marshall/Kathleen Freeman/Betty Lou Gerson/Charles Herbert/Eugene Borden/George Calliga/Harry Carter]
