The scientist Jack Griffin works at Dr. Cranley’s laboratory, where he is free to invest on his own experiments. One day, he disappears, leaving Flora, Cranley’s daughter, worried. Griffin is hidden in a small hotel, where he tries to reverse the result of a self-inflicted test that turned him invisible. However, the drug he used has a terrible side effect: he becomes extremely aggressive and dangerous. Now, he will do everything to regain his appearance. Based on the novel by H.G. Wells.