The Devil Bat ratings (Movie, 1940)

Dr. Carruthers feels bitter at being betrayed by his employers, Heath and Morton, when they became rich as a result of a product he devised. He gains revenge by electrically enlarging bats and sending them out to kill his employers' family members by instilling in the bats a hatred for a particular perfume he has discovered, which he gets his victims to apply before going outdoors. Johnny Layton, a reporter, finally figures out Carruthers is the killer and, after putting the perfume on himself, douses it on Carruthers in the hopes it will get him to give himself away. One of the two is attacked as the giant bat makes one of its screaming, swooping power dives.

Sherlock Holmes and the Voice of Terror
Total votes: 5,326
Average rating: 6.4 The Return of Doctor X
Total votes: 2,613
Average rating: 5.7 The Corpse Vanishes
Total votes: 3,642
Average rating: 4.6 The Devil Commands
Total votes: 1,490
Average rating: 6.1 Before I Hang
Total votes: 1,456
Average rating: 6.1 The Man with Nine Lives
Total votes: 1,145
Average rating: 6.5 Calling Dr. Death
Total votes: 1,295
Average rating: 6.1 The Ape
Total votes: 2,121
Average rating: 4.6 Bowery at Midnight
Total votes: 1,323
Average rating: 5.3 Terror House
Total votes: 879
Average rating: 6.2