How to hide full content for not loged users in wordpress?

I am trying to figure out how to hide content when user press Continue Reading button in wordpress. I found lot of plugins but they all hide content in main page also but i don't need that... So idea is like this: when user is not logged in he can see main page also categories... Image small text and button Continue Reading, after he press button he will see something like "Only registered users can read a post"... Maybe somebody can help with good advise how to do that...???

Best Regards, Raimonds

via Chebli Mohamed