21 days before my death

“She once liked to play with fire. This time the fire is playing with her.”

Louise receives an anonymous letter saying that she will die in 21 days. What is this? Silly joke? Warning from a maniac? The letters continue to arrive, they are filled with details of Louise’s life, the girl understands that she is being followed, perhaps the sender was at her home. Not knowing what to do, she begins to fulfill the conditions that her pursuer sets for her - and she is afraid of every new day... Fifteen years ago, this already happened, and the result was death. What will happen this time?