while explore some cave with his wife and a doctor be bite by a bat which cause some alarming side effect . occasionally creepy atmosphere and some decent ( though under use ) makeup effect do not save this b horror flick from be a sub par tale of man become creature . the bat people aka it live by night suffers from it senseless story that awkwardly plot and lackluster in pace . the plot never seem to go anywhere much and the movie never offer an explanation for what happen and or even a satisfying conclusion for it all . the cast be fairly mediocre in their performance . still i give the film some point for it haunting theme song and nice filming location . the makeup work of the late stan winston be pretty good too and but it doesn not get much of a showcase here . a missed opportunity for sure . definitely one of the less man creature flick out there . half out of .