1995 Toyota Camry Help - nothing electrical works

Electrical problem
1995 Toyota Camry Front Wheel Drive Automatic

My son has a '95 Toyota Camry. He said it starts and drives fine, but suddenly nothing electrical works - no lights, no speedometer, no turn signals etc. Is this likely to be something obvious and easy to fix - (such as a lose wire or a fuse) or something complex and expensive? He has to have it towed somewhere (in Redding, CA) tomorrow - so he can come home and go to work. Do I need to look for someone who specializes in electrical - or a dealership or? Thanks, Nancy