The Nudist Camp At the End of the Rainbow

This is a tale of murder, greed, revenge – and nudists. And it’s all in the family.
Robbie has a bitter old score to settle with Francine, who had gotten him fired from his brother’s business – for not wanting to be a nudist and a “swinger” like the rest of them.
After Robbie’s brother was murdered, and the shooter killed himself when the police cornered him, there was no one left to blame but his brother’s ex-wife, Francine, for it was she and her lover who had caused the shooter to go nuts and start on his killing rampage. They took the bankrupt company’s books and went into hiding, because Francine had been juggling all the money in the company, until it went bankrupt, taking the shooter/investor’s money with it.
So when Robbie and Gina, his fiancé, arrived at the nudist camp where his brother used to live with Francine and the whole motley crew of their swinger friends, it seemed like it would be pretty easy to corner them, since they’d have no clothes on at all, and could be caught lounging around in the nude. And that was when Robbie would get his revenge, because he was not about to let Francine get off scot-free.
But that turns out to be harder than it looks, when a determined and naked Francine, along with her present lover, drive right out of the nudist camp without a stitch of clothing to their names, in their Lincoln town car on four flattened tires, after their trailer explodes in flames.