When it comes to spoof documentaries nothing will ever top Rob Reiner's This Is Spinal Tap. But the brother-and-sister writing-and-acting team of Rebecca and Jeremy Front have come pretty close with this superb observational comedy series.

Each stand-alone drama has Jeremy spending 24 hours with a woman of note, who also happens to be a total nightmare. Rebecca, of course, plays them all and they range from a TV psychic to a working-class opera diva, via a drunken war photographer, an evil-genius geneticist and a brash, TV-friendly hack and author.

Jeremy is joined in each "documentary" by real experts who attempt to throw light upon the ghastly woman in question. Robert Winston, Janet Street-Porter, psychologist Richard Wiseman and 60s photographer David Steen all turn in quality performances, but the stand-out new drama talent for me for is Jeremy Paxman.

He attempts to get a quip-free straight answer out of the abhorrent journalist Lucy Winterton but gives up when she wears him down with her, "I put the pun into pundit" responses. This is not just good, it's excellent and shows that quality writing can transform radio comedy into something that's laugh-out-loud funny.