In his lab, the Professor (Stuart Pankin) does an intro for the Institute of 3-D Technology, but the intro dies, so the Professor uses the Letter Cannon for the title of the movie. However, it spells the word "third" "thrid", so the Professor activates the spell correction, resulting in the lab's screen being destroyed and several fires being started, which are put out by the Professor's robot assistant, M.A.X. (Stuart Pankin). The Professor has a new system called Real O Vision for 3-D technology, and to demonstrate has Elvira, Mistress of the Dark (Cassandra Peterson) perform a haunted house song, but the machine still has some bugs in it and traps Elvira between the second and third dimensions.