"The Unborn" (or "The Mother") is the story of Por (Intira Jaroenpura), a young woman who works as bartender in a popular nightclub. One night, she is brutally beaten by her former drug dealer Ord (Wannakit Sirioput) who throws her to a lake thinking she is dead. The next day she awakes at the hospital, where Dr. Rudee (Aranya Namwong) has been taking care of her after she was miraculously saved from drowning; however, not all are good news, as she is informed that she is also pregnant. As she recovers from her wounds, she begins to have horrible visions of a strange female ghost that seems to be decided to drive her insane. At first she thinks those are hallucinations caused by the shock and the withdrawal from drugs she is experiencing, but soon the visions become more real, and dangerous.