Slow to start, and based on a very contrived story about the reluctant (!) revenge of an authoress who, long ago, was very briefly humiliated in her quietly hypocritical home town, this was a missed opportunity to do anything much more than parade a lot of Jewish-style original-sin/Garden of Eden Angst about nakedness and trot out some stock characters, including, of course, an asexual, nerdy, fat guy glued to his video games, he not even noticing the naked woman in front of him (when she eventually presents herself so - will even he get his kit off come the finish?) and an older, bronzed-up free-spirit who tries (mainly unsuccessfully) to being the others out of their shell: he, alone, is comfortable without his clothes. A moment or two of gay sex (with the mayor..) is played only for laughs - again, a cop-out - let's keep it safe, boys !
Basically, you keep hoping that something will actually happen beyond biting their lower lip and hopping from foot to foot but it doesn't, mainly.
It's winsome enough - in other words fairly funny and the concept is promising, but it could have been savagely amusing if the direction had been more daring. There is insufficient nudity, however handled, to justify the plot, let alone to delight (or shock, depending on which view you usually take of it). One thing works, though - the title of the picture. They do one hell of a lot of planning but almost no orgying and no orgying means no real chance to set the town alight, small though it may well be.