Joss Whedon

(...)

 BUFFY THE VAMPIRE SLAYER: Teenage serial killer destroys town in fit of semi-religious fervor.

 FIREFLY: In an analogue of the post-Civil War west, a white man on the losing side bosses around a black woman.

 SERENITY: Men fight for possession of scantily clad mentally ill teenage girl.

(...)

Click on the link :

http://www.postmodernbarney.com/2009/04/uncomfortable-plot-summaries/