Mr Plumley is a man who likes order in his life. He eats steak and kidney pudding on Wednesdays, he catches the same train every day and he always buys the Daily Telegraph. He likes his life as it is, or at least he thinks he does until one day the sea washes away his carriage and he ends up looking for happiness. He doesn't find it inside a whale's belly, but he does find Jonah who becomes his companion in his search for paradise.
Network of Stuff's little production may not amount to a great deal, and it is oddly pitched somewhere in a no-man's land between a children's and adult show. But it has a whimsical charm and a very sure sense of its own style. The Pathe news-type voiceover describing Mr Plumley's life is wittily done, and the two performers have a low-key, dead pan style which is very appealing. They also have good physical skills.
The narrative thread could be stronger and almost all the sequences - particularly the one on the ghost ship - could do with a good prune. But it is a neat little show, deftly done, which in its final 20 minutes really seems to be going somewhere. And who couldn't love a show which has a boat made entirely from yellow plastic ducks?
· Until August 28. Box office: 0131-556 6550.