Detective Jeff Maher takes us inside the hunt for one of Australia's most evil serial killers. Maher and his team brought to justice the man responsible for 3 murders.

An elderly couple are tied up and strangled in their own home,but there are no witnesses and no apparent MO.

No body, no witnesses, no DNA, so how did Detective Dennis Bray solve the most notorious kidnapping in Australia's history?

Detective Superintendent Deborah Wallace takes us through an incredible story that begins with a small drug deal in a country pub in regional NSW.

Former Queensland Assistant Commissioner Ross Barnett takes us through his most confounding case, twelve armed robberies up and down the QLD coast. Each crime there was a different MO, and the only connection was, there were two males involved in each robbery.