Genetically mutated bats escape and it's up to a bat expert and the local sheriff to stop them.
A governess, caring for two children at a remote estate, becomes convinced that the grounds are haunted and the children are under an evil influence.
Ping is a chihuahua rescued from the pound by nearsighted Ethel, who thinks he's a cat. When a pair of bumbling thieves try to break into Ethel's house to steal the money they think she has stashed away, only Ping can foil their plans.
