Abbie awakens in a daze with no memory of who she is or how she landed in this unsettling condition. The man by her side claims to be her husband. He’s a titan of the tech world, the founder of one of Silicon Valley’s most innovative start-ups. He tells Abbie that she is the perfect wife. He says she had a terrible accident five years ago and that, through a huge technological breakthrough, she has been brought back from the abyss. But as Abbie pieces together memories of her marriage, she begins to question her husband’s motives - and his version of events.

Pete Riley answers the door one morning and lets in a parent's worst nightmare. On his doorstep is Miles Lambert, a stranger who breaks the devastating news that Pete's son, Theo, isn't actually his son - he is the Lamberts', switched at birth by an understaffed hospital while their real son was sent home with Miles and his wife, Lucy. For Pete, his partner Maddie, and the little boy they've been raising for the past two years, life will never be the same again.

Reeling from a traumatic break-in, Emma wants a new place to live. But none of the apartments she sees are affordable or feel safe. Until One Folgate Street. The house is an architectural masterpiece: a minimalist design of pale stone, plate glass, and soaring ceilings. But there are rules. The enigmatic architect who designed the house retains full control: no books, no throw pillows, no photos or clutter or personal effects of any kind. The space is intended to transform its occupant—and it does.

When Milla accepts an off-season invitation to Le Rocher, a cozy ski resort in the French Alps, she's expecting an intimate weekend of catching up with four old friends. It might have been a decade since she saw them last, but she's never forgotten the bond they forged on this very mountain during a winter spent fiercely training for an elite snowboarding competition. Yet no sooner do Milla and the others arrive for the reunion than they realize something is horribly wrong.

Miley's plans take a terrifying detour when she's abducted during a morning run. Held captive in a desolate off-grid cabin, she'll have to use her athletic prowess, cunning mind, and courage to survive. As the nightmare at the cabin escalates, Miley is forced to form an unlikely alliance and attempt a risky escape.