"An unputdownable psychological thriller with a breathtaking twist."

Someone inside your house wants you dead, but no one believes you

Joanne knows how lucky she is. Richard is a wonderful husband, Evie is the most gorgeous baby girl, they live in a beautiful house... Life couldn't be better. Until Richard's twenty-year-old daughter Chloe turns up. Chloe hasn't spoken to her father since the day he married Joanne two years ago. But Chloe wants to make peace. She'll even move in for a few weeks to help Joanne with the new baby. It sounds perfect, but when things happen that make Joanne feel like she's losing her mind, she begins to wonder: Is Chloe really here to help? Or has Joanne made a terrible mistake by letting her move in? And is it too late to ask her to leave?