go into this movie you know that this be movie have six lab technician in a sealed lab with an invisible maniac . so right away youre guess who will live and who will die . the survivor end up be exactly who you would expect them to be and so no point for plot twist there . and if youre not sure if this be a b movie or a movie that just happen to take place in a lab with an engage story and william devane play a part represent instant b movie status . the movie be promise in the beginning . at the lab we be introduce to the invisible gorilla who be become increasingly violent . oooh and foreboding . the best scene in the whole movie be when the lab team make the gorilla visible again . great special effect . same thing when they make bacon invisible . there be a couple of bare breast and a really lame dirty joke and enough out of place swear to give this movie an r rating that it really do not need . for a thriller there weren not really any surprise and except when shue make like macgyver in the freezer and which be more of a whaaaa . ok and there be one surprise . that when caine ( bacon ) come back one last time in the elevator shaft . it be a surprise but only because youre yelling at tv and noooo . youre dead already . end the movie . speaking of yell at the tv and that all i do for the last 25 minute or so . put on your f # @ % ing goggles . instead of put their infrared goggles on so that they can see him and they try every other trick in the book ( fire extinguisher and sprinkler system . ) . the story really lose it at the end . but the special effect be good while that the only reason i give it a negative .