User allowed back end admin but not front end.

Hi all.

It’s rare I post on here as I usually manage to work a way around things. However, this one is a bit unusual I guess.

I need to give a user access to the admin back-end, but not allow them to see the front-end content that other logged in users can see.

I should add that we’re talking about a subscriber-level user here.

Bit of a strange one? Probably. I can explain why if required and any help would be much appreciated.

Thanks.