It's possible, especially if you have FileMaker Advanced.
A script trigger, OnLayoutEnter can perform a script that sets up Record 1 as the only record in your found set. (There are a number of different ways to script that.)
Then you can set the layout up with a custom menu where you have removed the find, show all records, show omitted only and omit records menu options are not available so that the user cannot access other records.
Another option would be to use a portal to display the first record of your table and then the portal can be set up so that the other records in your table cannot be viewed in the portal.
Thank you Phil again