David & Catherine Birnie were a Perth couple who embarked on a depraved killing spree in Perth in 1988. Together they would cruise the city’s streets picking up unsuspecting young women who were then kidnapped raped and murdered. It was only after their final victim staged a courageous escape and exposed the House of Horrors that the killer couple were arrested and jailed for life. David later committed suicide in jail. Catherine makes regular appeals to be released on parole. This episode looks into the family backgrounds of both killers and includes an exclusive interview with David Birnie’s first wife, and others who knew the couple when they were children.