After staging his own suicide, a crazed scientist uses his power to become invisible to stalk and terrorize his ex-girlfriend. When the police refuse to believe her story, she decides to take matters into her own hands and fight back. When Cecilia’s abusive ex takes his own life and leaves her his fortune, she suspects his death was a hoax. As a series of coincidences turn lethal, Cecilia works to prove that she is being hunted by someone nobody can see.