Watching my friends one year old for a week?

Poor little fella.I bet he has never been away from both parents at once and that is why he is crying.In the daytime he has your kids to distract him and at night he is all alone.I wish I could help you.But I am afraid you will have to tuff this one out.He's going to do that till one or the other of them come home.As far as the nanny cam it's your house I'm guessing how could she have hidden a camera in there with out you knowing.