Vicky Barton and her brother Johnny travel from Naples to visit the 1889 Paris Exhibition. They both sleep in seperate rooms in their hotel. When the she gets up in the morning she finds her brother and his room have disappeared and no one will even acknowledge that he was ever there. Now Vicky must find out what exactly happened to her brother.
You can now watch So Long at the Fair online on the following streaming providers in the United States.
| Directing | Antony Darnborough | Director |
| Directing | Terence Fisher | Director |
| Writing | Anthony Thorne | Writer |
| Camera | Reginald H. Wyer | Director of Photography |
| Writing | Hugh Mills | Writer |
| Crew | Les Bowie | Special Effects |
| Sound | Benjamin Frankel | Music |
| Sound | Gordon K. McCallum | Sound Mixer |
| Costume & Make-Up | George Blackler | Makeup Artist |
| Camera | David Harcourt | Camera Operator |
| Production | Sydney Box | Producer |
| Editing | Gordon Hales | Editor |
| Crew | Bill Warrington | Special Effects |
| Production | Betty E. Box | Producer |
| Art | Cedric Dawe | Art Direction |
| Art | George Provis | Supervising Art Director |
| Costume & Make-Up | Elizabeth Haffenden | Costume Design |
| Sound | George Paternoster | Boom Operator |
| Sound | Fred Ryan | Boom Operator |
