There can't be too many shows at the Fringe which feature a musical about BNP über-führer Nick Griffin and his Robertson's Jam-eating, red, white and blue ways. And will anyone else dare to include cameos from Angela Lansbury and her crime-solving alter-ego, Jessica Fletcher, who turns out to be crap at am-dram? This is not a good show to see with a hangover or a slow-processing brain, as the mindsqueezin' part of the title means they pack in knowing, oddball topical comedy sketches at breakneck speed, shouting 'keep up!' to the crowd. Luckily, footnotes are provided at the end like DVD extras.

Other spot-on characters include a 'trendy vigilante with a mortgage to pay', Kate Bush (trying to pass for Duffy), and Gene Hackman, who Kamil is stalking through a classified ad for a bunk bed. Delivered like two precocious and versatile child acting stars, it's inventive comedy for the mind, like a mutant Heat magazine and Monty Python cross-breed.

Gilded Balloon Teviot, 668 1633, until 25 Aug, 5.30pm, £9–£10 (£8–£9).