Official trailer of Grumpy Cat’s Worst Christmas Ever . Watch the movie Saturday, November 29th at 8/7c on Lifetime. In " Grumpy Cat’s Worst Christmas Ever ," Grumpy Cat is a lonely cat living in a mall pet shop. Because she always gets passed over and never gets chosen by customers, this kitty develops a sour outlook on life until…one day during the holidays, a very special 12-year-old girl named Chyrstal enters the pet store and falls in love with Grumpy Cat. Please Leave A Comment-