Verteran investigative journalist Stevie Cameron first began following the story of missing women in 1998, when the odd newspaper piece appeared chronicling the disappearances of drug-addicted sex trade workers from Vancouver's notorious Downtown Eastside. It was not until February 2002 that pig farmer Robert William Pickton would be arrested, and 2008 before he was found guilty, on six counts of second-degree murder. These counts were appealed and in 2010, the Supreme Court of Canada rendered its conclusion.

Everyone thinks they know the story of Milly Dowler. Haunting headlines about the missing schoolgirl splashed across front pages. The family's worst fears realised when her body was found months later. The years of waiting for the truth, only to learn that the killer, known to the police, lived just yards from where Milly had vanished. The parents subjected to horrific psychological torture at a trial orchestrated by the murderer.

In 1911 two British heiresses, Claire and Dora Williamson, read a brochure about a revolutionary fasting treatment that promised a lifetime of good health. The sanatorium in the village of Olalla, west of Seattle, was surrounded by a beautiful forest, sparkling waters and fresh air. The sisters agreed it sounded perfect and exactly the restorative holiday they needed. But within a month of arriving, under the supervision of Doctor Linda Burfield Hazzard, Claire and Dora began to realise the frightening truth – they were not patients but prisoners at the isolated sanitorium.

Marissa Irvine arrives at 14 Tudor Grove, expecting to pick up her young son Milo from his first playdate with a boy at his new school. But the woman who answers the door isn't a mother she recognises. She isn't the nanny. She doesn't have Milo. And so begins every parent's worst nightmare. As news of the disappearance filters through the quiet Dublin suburb and an unexpected suspect is named, whispers start to spread about the women most closely connected to the shocking event. Because only one of them may have taken Milo - but they could all be blamed.

When Nancy Cooper moved from Canada to Cary, North Carolina, with her new husband Brad, their future was bright. Living in one of the most picturesque towns in the United States, the couple mingled with neighbors, attended parties, and raised two daughters. Then, on July 14, 2008, the façade came crashing down when Nancy's strangled body was found in a storm pond. Nancy's husband claimed that she had gone for a jog and never come back.