Mate Yimsomboon

Quatro estudantes de medicina que sofrem de insônia são atraídos para um experimento que sai do controle. Agora eles precisam escapar antes que seja tarde demais.

Nard, a high school girl falls in love with Mac, a senior in the same school. They are in a relationship and Nard gets pregnant. Mac’s mom forces him to cut contact with Nard and study abroad while Nard’s mom persuades her to have an abortion. Nard didn’t survive the abortion; however, she isn't done with this world and starts haunting the apartment complex where she used to live...

When old friends from school start dying one by one, Sayree and Nataya begin to search for the secret of the letter that each of their friends received before death. Soon the two believe they are the next targets.