It's my first time in this kind of contests, but I hope you'll all appreciate my effort!
The title, Albtraum, means "Nightmare" in German: I tried collecting all the negative feelings we have when we dream of sad or anxious things.
All begins with people falling asleep and starting to feel nervous. All begins with fearing unrequited love, then it turns to confusionary images and noisy sounds, then we have the loss of people that are dear to us (mother, father and then the whole family ) and finally fear of the monsters/ghosts.
Luckily, love is able to fill our hearts with light, and at the end we wake up realizing everything's alright.