restricted parts of articles?

Is there a plugin, that would do a job of limiting access to tagged parts in articles?
Let’s say… I would add a special text or video in articles, tag it with [registered_only] “my special video”[/registered_only] and it would show to unregistered users a text “This content is restricted to registered users only, login to see/read”, but to logged users, he wouldnt notice that is restricted.

Is there such a plugin?