Director Al Adamson filmed the first version of his story treatment "Two Tickets to Terror" as Echo of Terror, a straightforward heist movie, in 1964. Adamson and producer Sam Sherman could not interest any distributor in releasing the movie. Several new scenes were added in 1965 featuring go-go dancing and two musical numbers, and the movie was re-titled Psycho a Go Go and released by Hemisphere Pictures. The movie was reedited again in 1967 adding scenes featuring actor John Carradine. The result was a more horrific, science-fiction themed version, Fiend with the Electronic Brain, which received a limited theatrical release by David L. Hewitt's American General Pictures. In 1971 Adamson reedited the film yet again, dropping the go-go dance and musical sequences and filming new scenes that added a zombie and mad doctor subplot featuring Tommy Kirk, Kent Taylor, Regina Carrol, Richard Smedley, and Barney Gelfan, which was re-titled Blood of Ghastly Horror and released theatrically by Independent-International. Blood of Ghastly Horror was then edited for television distribution (removing the strangulation murder) and sold to Allied Artists TV under the title Man with the Synthetic Brain.