A small locomotive has come to the end of its working life at the Cicenice brick-works. The brick-works director sends his employees Kudrna, Kaplan and Sinták to Turnov for another. On their way the men are supposed to stop at a Prague hospital to get the director of the housing co-operative Dr Marek to sign an invoice for the supply of a wagon of bricks for internal construction, because the brick-works is expecting an audit.