What works for me is the discussion about the missing children…. Where did they go and why doesn't anyone care to look for them. You need to have some numbers ready when questions are asked. Don't push the issue just ask the initial questions and let them ask for more information.
A good plot with an unexpected ending like the movie "The Sting" (youtube.com/watch?v=LN2hBOIXhBs)
Maybe this will be 'The Sting II