Up in Flames is a 1978 pornographic film and unauthorized adaptation of the underground comix The Fabulous Furry Freak Brothers by Gilbert Shelton and Mr. Natural by Robert Crumb. The film's title also parodies the contemporarenous Cheech & Chong movie Up in Smoke.

Plot

Dolores, the Freak Brothers' landlady, is going to evict them unless they can come up with rent money. As a result, all three brothers find themselves victims of bedroom farces. Vinnie fakes being a painter, but his client wants other services anyway. Alas, when she later reveals she tricked him and still expects him to paint, he steals her purse. Meanwhile, Vinnie has sex with their landlady, just to find out she still expects her rent. She does however grant a postponement of some days to a female tenant who tries the same trick.