In 1972, a lecturer at the University of Adelaide was attacked at a gay beat, thrown into the River Torrens and drowned. 50 years on, Watershed: The Death of Dr Duncan shines a light into this appalling story and how his death changed Australia.Also, voice and dialect coach Leith McPherson shares more insights into the power of voice and we attend the rehearsal of a reimagined version of Alice's Adventures in Wonderland presented by the Australian Contemporary Opera Company.