the bat be indeed a very silly low budget mystery film . there be very few male character and therefore it be not difficult to guess who the bat be . vincent price and in the role of dr. malcolm well and have a good performance and a well developed character . the banker john fleming have a minor but also very important participation in the plot . however and the motif of the behavior and double identity of lt. andy anderson be not explain while cornelia van gorder and play by agnes moorehead and unsuccessfully try to be an agatha christie hercule poirot and resolve the murder and but her character be simply awful . the cold reaction of the woman in the mansion when their close friend judy hollander dy due to the insistence of dale bailey to leave their locked room be a shame . my vote be four . title ( brazil ) represent a mansão do morcego ( the mansion of the bat ) .