Teacher and former rugby league player Chris Dawson appeared to have it all - a loving family and a beautiful home in Sydney's Northern Beaches. But in the summer of 1982 his wife Lynette disappeared and not long afterwards Dawson married a much younger woman, a former student. Less than a decade later this young woman escaped the marriage and went to the police to record her suspicions that Dawson had been involved in Lynette's disappearance. A homicide investigation followed but got nowhere until 1998, when Detective Sergeant Damian Loone was handed Lynette's file.

If you thought you knew the story of The Teacher's Pet, get ready to be shocked. Hedley Thomas takes you behind the scenes with a blow-by-blow account of one of the most intriguing and enduring murder mysteries of our time - the crime, the podcast investigation, the sexual exploitation of teenage students, the courtroom drama - and how justice was finally delivered.

When she was four years old, Shanelle Dawson's mother, Lynette, disappeared. On 8 January 1982, the woman who had been a loving, constant presence vanished without a trace. Four year old's might not be able to articulate questions or understand a lot, but the ache of absence is very real. Year after year that ache persisted. Shanelle's father, Chris Dawson, claimed that his wife just needed to get away. This is what he told Lyn's parents and siblings. This is what he told his daughters. But Lyn never returned home.

Growing up in a quiet, middle-class suburb outside of Amsterdam, childhood best friends Anna and Olivia had their whole lives ahead of them. But every parent's worst nightmare came true when the teenagers fell in with the wrong crowd. Eleven years their senior, Ryan was charming and good-looking - and Anna and Oliva easy prey. Blind to his grooming, the girls were soon trapped in a terrifying cycle of sexual and physical abuse.    

Sarah Forsyth has spent most of her life in fear. After overcoming the hurt and heartbreak of a horrific childhood, Sarah managed to build a new life for herself as a nursery nurse. Then, one day, she spotted a newspaper advert for a job in a crèche in Amsterdam. Excited by the prospect of a fresh start abroad, she eagerly signed up. But within minutes of stepping off the plane in Amsterdam her life began to fall apart.... There was no crèche and no job. That night, at just 19 years of age, her life - her real life, her life as Sarah Forsyth - ended.