Elvira's Thriller Theatre S01 E14 The Fly

(1958) Francois Delambre, the brother of deceased scientist Andre Delambre, is summoned by Inspector Charas to speak with his widowed sister-in-law, Helene. Helene claims to be the murderer of her husband, who was crushed under a pneumatic press twice. Francois learns an unbelievable story about Andre's attempts to perfect a matter transport device.