Nurses and neighbours, partners and parents - all murderers who shocked Australia with the severity of their crimes. But what makes them tick?Society couple Michael O'Neill and Stuart Rattle had it all - their lavish country property, their interior design business - until Michael bludgeoned Stuart to death with a cooking pan. Akon Guode intentionally drove into a lake, leaving three of her children trapped in the car to drown. Geoff Hunt, pillar of the local community, shot dead his wife and their three children before killing himself. From feuds on the farm to the infamous Lindt Caf Siege in Sydney, Mind Behind the Crimeprofiles Australia's most horrific, and often most unlikely, killers.Renowned psychologist Dr Helen McGrath and prolific journalist Cheryl Critchley, authors of the bestselling Why Did They Do It?, join forces again to unpack the crimes and discover the personality disorders of the perpetrators. They use psychoanalysis and scientific methodology to uncover the circumstances and motives of our country's most notorious murderers, and to really understand the mind behind the crime.