After the death of his foster mom, Jack, the adamant German tuxedo cat, decides on living a life of solitude. Who needs companionship anyway? Others just get in your way and wreak havoc, right? This turns out to be proven true once Walter, Jack’s chaotic childhood friend, re-enters the picture. Feeling a sense of responsibility for his womanizing pal, Jack decides on taking him under his wing. A decision that’s destined to trigger chaos for the two of them. Note: 'Katzen-Jammer!' is a spin off comic of 'You've gotta be kitten me', a series in which all cats on Earth turned human. However, you don't have to know the original comic in order to follow the events of this series :)