What Is the Cause of the Noise?

When the family members first became aware of a peculiar sound in their home, they didn’t give it much thought. They might occasionally get a sight of it in their peripheral vision.

After that, the other home members became aware of the sounds. In the beginning, it was only a rare occurrence, but over time, it got more frequent. Because only one person heard it, the others felt there was nothing to worry about because they hadn’t heard it themselves.