A real concert by the fake band, intertwined with short skits.
The leads play their parts on stage with precisely the right amount of deadpan foolishness and professionalism. Michael McKean is particularly impressive, maintaining plausibility while doing the lead vocals. As a concert film it’s pretty good, and the various back references meet expectations, but it isn’t coherent. Spinal Tap performs folk songs from its hippie past and extra jokes that undermine the premise are shown on the projection screen above the stage. There are no noteworthy new jokes, the cross-promotion of The Folksmen is a little heavy, and the music is of course deliberately bad.