A con man hides out in a boys' school, posing as a professor. When the undisciplined and lazy boys have to pass a few tests, cheating becomes the only option.
| Actor | Role |
|---|---|
 Ronald Shiner'Professor' Fortescue | 'Professor' Fortescue |
 Harry FowlerAlbert | Albert |
 Anthony NewleyPercy | Percy |
 Alfie BassArtie Jones | Artie Jones |
 Richard WattisWilloughby-Gore | Willoughby-Gore |
 Gerald CampionPugley | Pugley |