Love and lust are among the most powerful of emotions, but when a joint thirst for violence is thrown into the mix, it creates the ultimate lethal cocktail. Killer Couples explores the deadly dynamic that exists within the relationships of men and women whose romantic obsession leads them to commit acts of bloody devastation. Looking at case histories from around the world - some well known, others whose shocking truth is revealed for the first time - it asks what kind of love proves itself by brutality against innocents, what warped ties of loyalty bind a lover to a mate who murders, and how the balance of power between a couple can become so twisted that other people become irrelevant and, worse, disposable. The seemingly normal can all too frequently hide a macabre depravity for terror, torture and death. If they hadn't met, these people might have continued through their lives in unremarkable obsurity. In all their horrific detail, discover how their flaws and fantasies fused to create a monster that fed on the sadistic extermination of their victims. The couples in this book could be your neighbours, even your friends. They're ordinary people with an extraordinary secret - murder.