In 1992, Sarah Lingate is found dead below the cliffs of Capri, leaving behind her three-year-old daughter, Helen. Despite suspicions that the old-money Lingates are involved, Sarah’s death is ruled an accident, and every year the family returns to prove it’s true.

But on the thirtieth anniversary of Sarah’s death, the Lingates arrive at the villa to find a surprise waiting for them—the necklace Sarah was wearing the night she died.

When she stumbles across the ad, she’s looking for something else completely. But it seems like too good an opportunity to miss—a live-in nannying post, with a staggeringly generous salary. And when Rowan Caine arrives at Heatherbrae House, she is smitten—by the luxurious “smart” home fitted out with all modern conveniences, by the beautiful Scottish Highlands, and by this picture-perfect family.

What she doesn’t know is that she’s stepping into a nightmare—one that will end with a child dead and herself in prison awaiting trial for murder. Writing to her lawyer from prison, she struggles to explain the unravelling events that led to her incarceration.

It wasn’t just the constant surveillance from the cameras installed around the house, or the malfunctioning technology that woke the household with booming music, or turned the lights off at the worst possible time. It wasn’t just the girls, who turned out to be a far cry from the immaculately behaved model children she met at her interview. It wasn’t even the way she was left alone for weeks at a time, with no adults around apart from the enigmatic handyman, Jack Grant. It was everything.

She knows she’s made mistakes. She admits that she lied to obtain the post, and that her behavior toward the children wasn’t always ideal. She’s not innocent, by any means. But, she maintains, she’s not guilty—at least not of murder. Which means someone else is.

Full of spellbinding menace and told in Ruth Ware’s signature suspenseful style, The Turn of the Key is an unputdownable thriller from the Agatha Christie of our time.

In the tradition of The Girl on the Train, The Silent Wife, and Gone Girl comes an enthralling psychological thriller that spins one woman's seemingly good fortune and another woman's mysterious fate through a kaleidoscope of duplicity, death, and deception.

Emma:
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.

Jane:
After a personal tragedy, Jane needs a fresh start. When she finds One Folgate Street, she is instantly drawn to the space - and to its aloof but seductive creator. Moving in, Jane soon learns about the untimely death of the home's previous tenant, a woman similar to Jane in age and appearance. As Jane tries to untangle truth from lies, she unwittingly follows the same patterns, makes the same choices, crosses paths with the same people, and experiences the same terror as the girl before.