Lonely Grumpy Cat lives in a mall pet shop where she never gets chosen by customers. One day during the holidays, a very special twelve-year-old girl named Chrystal enters the pet store and falls in love with Grumpy. The two form a special friendship when Chrystal discovers she is the only person who can hear this feline talk. Will Grumpy Cat finally learn the true meaning of Christmas?

A mother gives her son a toy doll for his birthday, unaware of its more sinister nature.