The Invisible Maniac (1990) BRRip Oldies

Haunted by his lifetime dream of achieving total invisibility, ridiculed physics professor Dr Kevin Dornwinkle is shocked to discover that his formula works. After all, Dornwinkle has all the time in the world to perfect his unstable serum while posing as an eccentric substitute teacher. However, there's no such thing as a foolproof plan: the more the unhinged tutor experiments with the incredible juice, the more Kevin finds himself trapped in a voyeuristic fantasy world of unfulfilled desires and potent obsessions. And now that Kevin has tasted the fruit of his labour, there is no turning back; the bullied scientist must teach those who stand in his way a lesson they'll never forget. When violent passion rules the mind, who can stop the invisible maniac?