From the internationally lauded author of Greenwich Park, The Other Mothers, and The Break-In comes a brand-new thriller set over the course of a luxurious Greek holiday where every guest has something to hide, featuring her signature double-twists.

Charlotte can't understand why her workaholic husband, Milo, is so determined to return to Corfu with their wealthy 'frenemies', Letty and Angus.

But at least they'll be staying at the Elia—one of Europe's most exclusive family resorts, with free flowing champagne, yoga at sunrise and round-the-clock childcare that promises a rare chance to relax.

Instead, the holiday takes an unsettling turn as Charlotte spots Gemma, a former school friend she hasn't spoken to in years.

Gemma insists she's at the resort to write a hotel review, but Charlotte isn't convinced. Wherever she goes, Gemma seems to be there too—at breakfast, by the pool, on the beach. Almost as if she is watching her...

As the days pass, Charlotte becomes certain something isn't right. Her husband and friends are behaving strangely. Gemma's story doesn't add up. And beneath the Elia's polished luxury lies a darker history: a missing resort worker, a backpacker who vanished exactly a year earlier, and whispers the hotel would rather keep buried.

As long-hidden secrets begin to surface, Charlotte is forced to confront the truth about what really happened between her and Gemma all those years ago—and why someone is determined to make sure the past can no longer stay buried...