MATT Rudkin’s head is full of rational thought. The only way to get rid of it is to explore the world of alternative therapy.

Rudkin’s journey forms the backbone of Inconvenient Spoof’s completely off-the-wall Fringe show.

Stage and puppetry conventions are torn down, logic and nonsense fuse together and there’s even a post-show discussion between the actors to uncover what, if anything, they have learnt about the experience.

There are some great ideas and lines floating around the nonsense as the trio poke fun at holistic therapy, with the audience never sure of what to expect next. But there is also dead wood and wilful craziness that occasionally outstays its welcome.

Part of the joy comes from the attention to detail in the piece – the strange costumes straight from cult series The Mighty Boosh, the props set up purely to provide one joke, and the strange hosts, with the air of an evangelical cult about them, who arrange the audience in height order as they arrive.

At one point in the post-show discussion Rudkin ruefully admits he has been doing this same thing for 20 years. It’s hard to see how something this strange could see him move on to a wider audience but it’s worth dropping in for the ride.