"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.