The tiny town of Scottsville is besieged by a flock of mutant, carnivorous bats that have escaped from the nearby university, where a crazed academic was conceiving them. Local veterinarian John Winslow (Whip Hubley) teams up with detective Ally Parks (Tracy Nelson) to find a way to stop the hungry varmints before they can devastate the Apple Blossom Festival, which the town's all-powerful realtor, Carl Parks (Corbin Bernsen), is counting on to bring him lots of new home sales. And wouldn't you know it -- they miss their deadline.
~ Buzz McClain, All Movie Guide