ROKUROKUBI

According to Japanese folklore, during the day the ghost of the Rokurokubi will become an ordinary woman like a normal woman, and live her daily life like any other woman, but when night comes the Rokurokubi will lengthen her neck, revealing her true form. The strange story is that when the Rokurokubi are not aware of his true identity, and when his neck lengthens at night he will realize that he was just having a strange dream.