Andrew (Brandon Salkil) is in a coma and at home in a wheel chair. His sister Agnes (Joni Durian) starts to care for him. She realizes in an animated sequence Andrew is in her head. He instructs her to take the blood of dead women (which Agnes always kills while they are naked...sorry for that spoiler) so that he can get well and doesn't have to die. That is pretty much it. Small subplot. I liked the 60's monster models on the top shelf. Acting and effects nothing to write home about. One finger piano soundtrack made the film worse. Pretty much just sat around waiting for the next tattooed female to get naked. Not that it's a bad thing, just not plot worthy.6 stars for the FF nudity (Joni Durian, Bambi Bodette, Circes Tate, Reagan Root, Corella Waring.

I see from the description of INVALID that the director, Dustin Mills, has good taste, being a fan of the great Italian giallo and horror directors such as Dario Argento and Lucio Fulci. This film seems to be his attempt at a tribute to Italian horror of old, but it doesn't really pay off and I really didn't notice anything like that. Instead this is cheap flick about a woman who cares for her disabled brother, until she begins to go crazy and starts to kill innocent women. The direction is arty and quite useless at times, such as when it cuts to animation or bad CGI bits. In any case, the emphasis is on graphic murders with plenty of nudity to boot. The gore effects are quite realistic and accompanied by icky sound effects, and the whole thing feels pretty sleazy and scuzzy.