When Judy realises that she is losing her memory, she decides she must write something down. She has kept a terrible secret for many years and she does not want it to die with her. However, when Laura, her daughter, finds this account, it is only the beginning of the story. It tells how Judy's friend Linda went missing more than forty years earlier, but it ends abruptly. Laura decides to try to solve the mystery of Linda's disappearance with the help...