Imaginary unknowns

Camille Prescott has it all – a loving husband, two children, a beautiful house by the sea, and she always acts exactly as people expect. But behind her carefully polished mask lies a woman with a vault full of secrets. She buried her past very deep for a good reason: her mother is mentally unstable, and if she ever finds Camille, she will kill her. One day, six-year-old Georgie comes home from school and says she has made an imaginary friend. Camille is astonished when her daughter suddenly starts mentioning details from Camille's childhood that she has never told a living soul. Is it just a coincidence, or is this friend not so imaginary after all?