There is a string of phone numbers that can only be dialed at three in the morning. Once you're connected, the voice on the other end will tell you a secret about yourself—but you'll never remember you made the call. Until the data witch Shen Ye discovered this "non-existent" number segment in the telecommunications equipment room.
There is a strange rule circulating in the city - "At three o'clock at midnight, dial seven sevens, and your wish will come true, but you must exchange it for the thing you fear most." No one took it seriously until the lovelorn girl was beaten, the man in debt was beaten, the desperate mother was beaten... Their wishes came true, but unexplainable phenomena began to appear around them.
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