Hitchcock's Half Hour's widely trumpeted Notorious isn't comedy so much as a psychological exercise on the folly of great expectations. The duo are flyposted all over Edinburgh as the "new young gods of comedy", but I can agree with only one aspect of that description. Unless their technical man is a god of soft, flattering lighting, neither of them is a day over 25. As a comedy double act, however, they are as much use as a plumber with a toolbox full of eels.

It really is time somebody from trades descriptions or customs did something about jokes that just aren't funny, because this pair have smuggled in a lorryload. Frequently spoofing pop songs, they are the first people ever to locate something that isn't funny about Elton John. The pitiful Eminem pastiche - "My name is enema" - is typical of the unappealing school humour that is the real reason local authorities have fenced off playgrounds. The occasional film material is very funny - they should definitely run with Poo Athletics - but they are further let down by poor stage presence and, unforgivably, forgotten lines. I was dying to laugh at the sketch where these two nincompoops assaulted each other to the strains of Britney Spears. Not, of course, for the reasons they intended.

• Till August 28. Box office: 0131-556 6550.