A man and wife are terrorized by Mad Scientist Dr. Callistratus who was executed but has returned to life with a heart transplant. Along with his crippled assistant Carl, the 'anemic' Mad Scientist, believed to be a vampire, conducts blood deficiency research on the inmates of a prison hospital for the criminally insane to sustain his return to life.
A British Intelligence officer fails a mission during WW2. Years later whilst working in a hotel he bumps into an old flame who is desperate to discover what went wrong?
Pouco antes de morrer, um espião inglês conta para o doutor Ben McKenna e sua esposa Jo, dois turistas inocentes, algum segredo que os envolve em um caso internacional de espionagem. Seu filho é seqüestrado e, sem saber em quem confiar, eles tem de lutar para recuperá-lo. Remake em widescreen e Technicolor do filme de 1934 do próprio Hitchcock.
