I know this sounds far-fetched and disgusting,but I dont think it is a coincidence that( the holiday party invited by the Paynes),that all the children except one,consisted of girls.I think it is possible that the children were being drugged by a couple of the men,in order to be abused.I think it very odd how Oldfield insisted on checking on the McCann children and by the next check Maddie was gone.I believe that the tapas friends silence pact stems from the fact that they all have something to hide,that if discovered would result in them all losing their careers,and their children.