How bad is it? It's intentionally very silly, but it's also not very good.
Should you see it? If the title sounds like something you'd watch.
Mark Pirro is a director with very strange sensibilities. I've skipped over a couple of his films already, but think I'll add them later. He makes films with odd titles (probably chosen before the script is begun) and odd premises, then adds quirky touches for a silly campy feel. In this one, a church closes down a nudist colony, so the nudists commit mass suicide and, when the church opens a religious camp on the site, the dead return for revenge. And songs. Did I mention this is a musical? There's a bunch of very stupid - but endearingly catchy - songs. The acting is sub-par, the special effects apparently intentionally bad and the dialogue could've been made up on the spot.