When a woman's body is discovered in a cathedral and hours later a young man is found hanging from a tree outside his home, Detective Lottie Parker is called in to lead the investigation. Both bodies have the same distinctive tattoo clumsily inscribed on their legs. It's clear the pair are connected, but how? The trail leads Lottie to St Angela's, a former children's home, with a dark connection to her own family history. Suddenly the case just got personal.

When the body of a woman is found hanging from a tree in her front garden, rookie Detective Morgan Brookes is first on the scene. But Olivia Potter is past saving. And when her husband and daughters cannot be traced, Morgan knows there is more to this tragedy. And then she finds them. Lying huddled together in the dark basement, each of their faces covered with a small cotton cloth, their bodies cold to the touch. But as Morgan kneels beside the family, she realizes that one of the girls is still breathing.

Six minutes in the wrong place at the wrong time—that’s all it took to ruin Sydney detective Ted Conkaffey’s life. Accused but not convicted of a brutal abduction, Ted is now a free man—and public enemy number one. Maintaining his innocence, he flees north to keep a low profile amidst the steamy, croc-infested wetlands of Crimson Lake. There, Ted’s lawyer introduces him to eccentric private investigator Amanda Pharrell, herself a convicted murderer.

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 Maggie’s husband, Will, is shot dead in their London home, she thinks he is the victim of a burglary until the police tell her the shocking news that Will was the one who pulled the trigger. Maggie is consumed with grief and questions. Will wasn’t suicidal. He had so much to live for.