Julia and Sarahare twin sisters. These beautiful sisters suffer from functional degeneration in their prime. A year ago, Sarah's eyes were completely blind, and Julia's eyesight was gradually diminishing. One dark night, Sarah hanged herself. Julia felt uneasy in her heart. The next day, she and her husband Isaacdrove to her sister's house, and what awaited them was unbelievable bad news. However, there are various signs that Sarah did not seem to have committed suicide. She seemed to be accompanied by a mysterious man in the last period of her life.
Julia tried to follow these clues, her behavior made Isaac very restless, and all kinds of panic also accelerated the decline of her vision. At the moment when darkness is about to fall, Julia also vaguely perceives a man who is coming and going without a trace patrolling beside her at all times
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