dark interior = extreme noise

[themaxxer]

I use vray 3.5, but I don't think it's because of that, but I have an extreme noise problem. it seems where is light all is fine but the shadows are bad. http://c2n.me/3Hw4M3Q.png
I have merged everything in a new scene, but it doesn't helped. it's a model from a client, but I have used the vray converter and all materials are vray mats... I have no idea what could help to get a cleaner rendering.

any ideas?

I have to render this till friday and I am scared I can't.

best regards
themaxxer

[benb32]

You will almost certainly need to provide more details about your renders setup or provide a scene.