It can take years for love to turn to murderous hate – or it can happen overnight.

What drives a man or woman to commit the ultimate betrayal - to take the life of a parent, a child, a sibling, a lover?

Bloody Relationsis an unflinching exploration of fourteen well known and not so well known murder-in-the-family cases. Taking readers inside the life and mind of both killer and victim, John Kerr unfolds the gripping stories behind some of Australia's most sensational and shocking crimes. Why did Rory Thompson kill and dismember his wife? Why did Kathleen Folbigg kill her four young children? How can an ordinary son from an ordinary family, like Sef Gonzales or Matthew Wales, suddenly explode with murderous rage and destroy the people closest to him?

These are devastating stories of secrets, revenge, rage and heartbreak. They make for compelling reading.