Mr Mann frequently enters a shop, looking for some impossibly particular item. The shop, although it sells different items each episode, is always run by the same man, named Roy (Lucas).
The sketches' trademarks are Mr Mann's absurdly specific or general requests and Roy's unseen wife Margaret (voiced by Stirling Gallacher), who gives help from upstairs because she is disabled.
Mr Mann only appeared in one episode in the first series, but was a regular character in the second and third series. These sketches are some of the more traditional in the series, relying not upon shock but more on wordplay and surrealism.