Review: "Gas-s-s-s"

My mother and I are avid fans of On Demand, especially the random movies that they post. We've started this tradition by watching the old 1970's movie, "Taking of Pelham 123". Our second movie was "Topkapi" or something along those lines from the 50's. So, our next random movie is called "Gas-s-s-s" from the 1970's. I'm sure it has historic references, but they probably skipped my generation. The story seems to be umm.... er, maybe I should start "The plot line is fueled by"... All right, let's just get down to this. The story is drug driven. At times I'm so confused that I felt like I've passed out. The plot follows random teenagers in a world where all adults (or people over 25) died from a gas leak. The movie is rated "R" and that's for a good reason. There are so many awkward sensual scenes and general craziness. Still though, the story has... umm... beautiful scenery? Actually that is pretty true. The story is set in Texas and the characters journey to New Mexico (I believe) later on. The background is free and lonesome and the characters are seen doing the oddest things at them (Riding golf carts, flying around, sitting in a giant plane.) The characters themselves are.... Spontaneous. They come and go as they please in their ultimate mission to find happiness... I think. Some highlights of the movie? Odd characters, interesting scenery, some references, crazy plotline, and Edgar Allen Poe on a motorcycle. Yah, I don't know either. Overall, interesting. I just need to let the confusion fade away.