I bought this film on a cheap DVD from a 99 cent store. I know very well why it was 99 cents. It starts out in the prison where the strangler, Roger Sans, is being held. He starts to meditate and becomes 9/10 invisible when his stupid insomniac cell-neighbor sees him. He picks an argument with him and gets telekinetically attacked. A guard comes in and is locked in Sans's cell while he escapes in a tacky hand-held shot accompanied with ridiculous "heartbeat" and "heavy breathing" sounds. He visits his mother's grave, where in a weird flashback-ish scene it is explained that Riger's mother never cared for him and never let his life progress. A police officer, a particularly stupid officer, approaches him, claims Roger is a vandal and threatens to call reinforcements. This is where one of my favorite bad movie things happens. His eyes glow when he telekinetically pushes him into an open grave. This sounds normal, but the glowing eyes effect was achieved by painting glowey stuff on a still picture of the strangler. Greaaaaaaaaaat. Anyway, a bunch of inconsistencies ensue, Robert Foxworth shows his HIDEOUS rear area, Elke Sommer wears a bikini, and blablablabla. However, let me point out the silly ending. Roger Sans is sneaking up the stairs to kill Elke Sommer. However, the police are hiding watching him, and have charged the railing with electricity to know when he arrives(!) Robert Foxworth rapidly fires a machine gun until there is a shot (in negative to illustrate the invisibility) of Roger Sans screaming as bullets go in everywhere. He falls onto the floor, pulsating from inverted to normal tone. His last words: "I never wanted to hurt you mama." He then glows brightly. It fades away and a void opens up in the floor, where a blue glowing Roger Sans careens into another dimension and creates a glowy blast thing. The void in the floor closes up and that is the end of Roger Sans. It is a little hokey, but it genuinely disturbed me. Tell you what, buy the DVD and skip to the end. You'll actually feel a little weird. Bad, very bad.