Involuntary auditors (1955)

Original title: Ревизоры поневоле

Two business travelers, Laptev and Rusakov, staying at a small town hotel, were surprised by the care that the service staff showed them. It turns out that the hotel administrators, lazy and bureaucratic, accepted the new guests as capital auditors. But it soon turns out that the real auditor has been living in one of the rooms for three days and has already started working as a hotel staff member.