Alone!

One day Billy hears the squeak of a mouse - destroying his perfectly peaceful existence. So he gets a cat. But the cat and the mouse make friends. So he gets a dog to chase the cat. But they all play together too. So then he gets a bear... then a tiger... and on it goes, until Billy's house is so filled with characters that he has to move out. Will he find that he still craves peace and quiet, or is it actually quite lovely to have company and friends