It's a series of 20 graphic novels called The Sandman. It's about... well, you'll have to read them to understand fully. Basically it's about Dream, the anthropomorphic personification of ... well... dreams. =P He rules over the world of dreams. He's got six siblings: Destiny, Death, Destruction, Desire, Despair, and Delirium. Each of them have the task of their namesake. For example, Delirium rules over the crazy folk. =)

I really do recommend reading them. "The Sandman" by Neil Gaiman. He's one of my favorite writers and I promise you a great story.