Expanse is the ABC’s internationally award-winning podcast exploring big stories from across Australia, and it’s sixth season sees host Dominique Bayens investigate the unsettling circumstances surrounding the 2007 disappearance of four people from the town of Nannup in Western Australia: Chantelle and Leila McDougall, Tony Popic, and a man known as Simon Kadwill. Simon espoused a doomsday belief system in online forums and through his book, Servers of the Divine Plan. And when it came to his relationship with the much younger Chantelle, many close to her had noticed his controlling behaviours.

Links

• Expanse: The Nannup Four — Australian Broadcasting Corporation, 2026
• The curious case of the Nannup Four — by Dominique Bayens for the Expanse podcast, ABC, 7 March 2026

You can support Let's Talk About Sects here. If you have been personally affected by involvement in a cult, or would like to support those who have been, you can find support with or donate to Cult Information and Family Support if you’re in Australia (via www.cifs.org.au), and you can find resources outside of Australia with the International Cultic Studies Association (via www.icsahome.com). Find Sarah's audiobook Do As I Say here. With thanks to Money Saver Home Loans, supporting partner for this episode of Let's Talk About Sects.

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