Amy receives an exclusive invitation to the party of the year. Billionaire business magnate Lawrence is getting married, and it looks set to be a summer wedding to remember. He rarely appears in the public eye, so this is a once in a lifetime opportunity for Amy. She has spent months building up to this moment; it’s her only chance to get revenge. Because she knows who Lawrence really is – that beneath the polished public persona he is a vicious killer, responsible for the deaths of not just Amy’s sister but several other innocent women.

For over four decades, Camp Shady Oaks was the premiere youth camp for a summer filled with nature, survival skills, and fun in the remote woods of the Hiawatha National Forest. In 1999, it was forced to close abruptly when tragedy struck.

At thirty-six, Katie Cope's life hasn't turned out the way she planned. She had big dreams of becoming an investigative journalist, but then her best friend from college disappeared. Claire was driving home for Thanksgiving and never made it. Her abandoned car was found at a trailhead in the Rockies, but she was never seen again. Now Katie's husband Howard has sold his San Diego business for more money than they ever dreamed. She's found a beautiful new housing development in the breathtaking wilderness of the Colorado mountains. It's just the fresh start we need, she tells him.

For better or for worse, Sarah Anderson has it all: a thriving career, a nice home in Ottawa, two young kids…and a marriage coming apart at the seams. Then her husband, Matthew, vanishes without a trace during a family vacation up north. Sarah and her children are nearly lost among the slumbering lakes, treacherous cliffs, and brooding forests of the Canadian Shield. A glacier-scraped realm of ancient beauty and terror, it’s a world away from the safety of the suburbs. And a big storm is brewing.

Annabel, Esther, Tanya, and Chloe are best friends—or were, as children. Despite drifting apart in adulthood, shared secrets have kept them bonded for better or worse, even as their childhood dreams haven’t quite turned out as they’d hoped. Then one day they receive a wholly unexpected—but not entirely unwelcome—invitation from another old friend. Poppy Greer has invited them all to her extravagant bachelorette party: a first-class plane ticket to three days of white sand, cocktails, and relaxation on a luxe private island in the Bahamas.