"Boy From Wonderland" depicts nightmare sufferer Hye-Joong whose dreams have become so severe that they actually happen in reality and finally endanger her life. To find the source of her terrors she travels to "Wonderland", a private resort she visited with her family 24 years prior. There is a mysterious and enchanting man, Hwan waiting for her. Within 15 days, she should find what she lost to stop her nightmares. If she can’t everybody will die.