Our hero, the black cat, has only ever worried about stealing fish and wooing the beautiful Graziella, until the fateful night when he witnesses a fellow cat being kidnapped. It's just the beginning; horrific abductions of cats are taking place all over the island, and soon, not only black cats, but all cats are being pursued.
A sinister society has corrupted the government and plans to make a fortune selling mousetraps once the cats are gone. They come close to succeeding and it looks as though only one black cat remains. But with help from his friends, the last black cat foils the horrible plan - and finds there's a last female black cat still around too!
