Luminus, don't you sometimes wonder what a sunlit day looks like? This question is constantly on the mind of Schimmerie Harztropf, the little forest fairy from the Hasselbachtal. She longs to experience her beloved forest during the day. However, as soon as the sun rises, forest fairies fall into a deep magical sleep. On the night of the grand summer festival, Schimmerie and her best friend, the fairy wolf Luminus, wander through the forest in search of answers. Along the way, they encounter interesting forest inhabitants like the tawny owl Fidelius Mausgraus, who loves to share his daytime experiences with them. But suddenly, Schimmerie and Luminus discover a magical thread that seems to emerge from the night’s blue - and shortly thereafter, the whole sky turns upside down. The two friends find themselves in a turbulent adventure where Schimmerie's heartfelt wish comes to life.