The plot concerns the police and a spunky girl reporter battling to solve murders connected to a gambling syndicate. Its a run of the mill affair that really isn't anything special, at least not the sort of special the title Invisible Killer might imply. The "killer" of the title is given the short end of the stick since the film is more concerned with the spunky (ie annoying) girl reporter and her battle with a homicide detective to flush out the murderer. If you've seen any film with a spunky girl reporter and a harden police detective you'll know what to expect from this movie. While I can say that this trip down the well worn rut of a plot isn't bad, I also have to say that is completely unremarkable and the sort of thing that's not likely to remain with you long after the credits roll. Its like eating your favorite dessert only discovering half way through it has almost no flavor, its not bad but it doesn't have what makes you love to eat it. Not bad, not good, just sort of is.