Framed for murder and sentenced to life in prison, Carlos (Arturo de Córdova) receives a valuable gift from his scientist brother...an invisibility serum that lets him escape undetected. Can he use his new abilities to prove his innocence, before the untested formula erodes his sanity? Mexican-made shocker (very visibly similar to 1940's "The Invisible Man Returns") co-stars Ana Luisa Peluffo, Raúl Meraz. 96 min. Standard; Soundtracks: Spanish, English. In Spanish/Dubbed in English.