Problem with normal maps. Blender 2.8

I have this weird glitch when adding normal map to my model in Blender 2.8 Can someone tell me what causes it?

You should connect normal map to normal, not to displacement.
image

Thank you for your help. Still i have to do something wrong. I did like you said and look what happened. :wink:

Normalmaps are Non-Coulor Data. (First option on the texture node.)

Thank you very much that fixed the problem. Your golden! :slight_smile: Have a nice day!