Three ideas for using circuses as the plot foundation for your RPG. Whilst I'm happy with the ideas themselves, I think the plot hooks / suggestions need work. Particularly the horror story. Hubski, your thoughts please.

tl;dr

    1) A party of circus heroes that solves crimes.
    2) A circus touring the new world that been infiltrated by an evil cult.
    3) Criminal hiding from the law in a giant space circus that flies from planet to planet.