Question about Done to Death?

I have just been cast in the play "Done to Death." I am very excited and I know that my school is very successful with plays, how they're built, the acting, etc. However, I don't really know much about the play, let alone the role I have been cast as.

My friends have seen the cast list (which is not online, I don't know how they saw it; but the director specifically told me that I had made the play). They told me I had been cast as George and had been double cast as someone else too! During auditions the director told me that the only double role there was is the monster. So I know for certain that I am George, and I think I am also the monster.

I am thrilled. But there's one problem: neither George nor the monster were featured in the auditions, so I really don't have much of a background on the two characters. Can someone please summarize the plot and tell me about these two characters? What do they do? Personalities?

This would be GREATLY appreciated!