I live in Massachusetts and I have a few trees in my front yard who appear
to be held hostage by some kind of climbing vine.

http://home.comcast.net/~patrick.gillette/House.jpg

The leaves on the vine look very similiar to this pic of a creek dogwood
leaf;

http://ghs.gresham.k12.or.us/science...pin/creek6.jpg

The vine looks very similiar to this Poison Ivy vine;

http://www.cattail.nu/ivy/ivy_berry.jpg

There are also some clusters of dried berries within the leaves. Any help is
appreciated. Thanks.