Are there any horror stories that make people feel cold behind their backs?

A girl accidentally witnessed a man's killing process on her way home at night and was found. After the man chased her all the way, she fled into a nearby toilet and hid in the last carriage. Before long, the man caught up with her. She listened as the toilet door was kicked open. First, the first door … the second door … the third door … suddenly stopped until hers. After waiting for a long time, she didn't hear the sound again. The girl was relieved and thought that the man had left, but she was still worried. She stayed in the toilet all night. When she woke up to go out the next day, she felt as if someone was watching her. When she looked up, she found the man staring at her above the carriage.