'LOVED it. I read it in 3 hours in one sitting' Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐THEIR FIRST MISTAKE WAS INVITING HER IN...Rose has it all - the gorgeous children, the husband, the beautiful home. But then her best friend Polly comes to stay.Very soon, Rose's cosy world starts to fall apart at the seams - her baby falls dangerously ill, her husband is distracted - is Polly behind it all?It appears that once you invite Polly into your home, it's very difficult to get her out again...The original psychological thriller: a dark, deliciously unsettling drama, perfect for fans of I Let You Go, The Couple Next Door and The Girl on the Train.Readers LOVE Cuckoo!'Brilliant... truly chilling' Sophie Hannah'Wow. This book is truly amazing... I devoured it' Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐'Totally compelling' Daily Mail'This is one smart and sharp psychological thriller... a shiveringly good read' Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐'A read-in-one-sitting book!... Julia Crouch writes with disturbing brilliance' Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐'Completely thrilling, I promise anyone, male, female, young, old, this book won't disappoint!' Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐'I was more and more gripped with the more I read... the ending still managed to blow me away. This was a book that stayed with me for days' Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐