Death stalked the Vale. In every corner, every whisper. They just didn't know it yet. Six neighbours, six secrets, six reasons to want Olive Collins dead. In the exclusive gated community of Withered Vale, people's lives appear as perfect as their beautifully manicured lawns. Money, success, privilege - the residents have it all. Life is good. There's just one problem. Olive Collins' dead body has been rotting inside number four for the last three months. Her neighbours say they're shocked at the discovery, but nobody thought to check on her when she vanished from sight.

It’s March 2018, and the country is covered in snow. Roads are impassable, shops are running out of food, and official advice is to stay indoors. Marianne lives on her own and works from home, so this isn’t a problem. Until she wakes one morning in her house in the middle of nowhere and finds footprints trailing all across her garden. Half-asleep, she is at first curious.

When Lauren takes a photo of a stranger on a beach and shares it online, she has no idea what will come of that single click. Her daughters are surprised that she posted a photo without consent, but it’s only when she starts to get anonymous messages about the woman on the beach that she deletes the photo. It’s too little too late, and the messages escalate, prompting Lauren to confess to the woman. The woman has her own dark story, one that might explain the messages, but Lauren isn’t convinced.

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.

'Urgent. Come tomorrow. Can’t wait any longer.' Charli Trenthan plans to leave her hometown of Stone Lake. But when she receives a cryptic message from a member of the Sanctuary, a conservative closed community nestled in the forest, she is determined to find answers. A gruesome discovery soon lands Charli in hot water with the police, but how is the Sanctuary connected? As she digs deeper, dark secrets are uncovered and the fight to prove her innocence turns into a fight for her life.