Colorless is the word that best describes this low-budget children's effort.
Mild-mannered inventor Karl Griffin (Barry Livingston) finds all his fanciful, altruistic experiments co-opted by overbearing boss Dr. Woorter (Russ Tamblyn), who declares that anything Griffin develops is the sole property of the science lab where they work. When Karl attempts an invisibility
serum, he takes the research home, away from Woorter's greedy gaze. Karl erases the family dog Cosmo from sight, and announces his success to wife Laura (Dee Wallace Stone) and son Josh (Trenton Knight). Josh has been grounded for messing up the house (actually the fault of the invisible Cosmo),