The animals in the Monroe household fear they are about to be replaced when seven suitcases, apparently containing new pets, arrive on Toby's birthday.
Chester the cat is more than ever convinced that Bunnicula is a vampire when there is a harvest of white vegetables on the morning after the night that Bunnicula was probably wandering through the neighborhood.
While their family is away, Harold and Chester, a dog and a cat, are boarded at Chateau Bow-Wow where Chester becomes increasingly alarmed by the strange disappearance of one of them.
Chester the cat is more than ever convinced that Bunnicula is a vampire when there is a harvest of white vegetables on the morning after the night that Bunnicula was probably wandering through the neighborhood.