Stephen King's 25-part web series, based on a short story, provides a cool new take on this medium. He used graphic artists to depict his story, with each episode lasting little more than a minute.
As is King's custom, he gives the viewer a great hook that pulls you right in: A woman whose psychiatrist brother recently committed suicide finds, in his personal affects, an incomplete manuscript detailing the case study of patient "N." The manuscript is labeled Burn This!, but King is nothing if not true to human nature and temptation - and so, she reads on.
N begins to suffer from extreme obsessive-compulsive disorder when he believes he has stumbled upon a gate to another world. He then believes he is responsible for keeping the order of the universe. The story explores N's "delusions" and his theory that OCD is like an infection that can catch.
The fact that King's a pro and has presented his story in 1-minute increments guarantees a fairly big revelation or character development in every episode. By following the Spiral story shape from the Advanced Screenwriting class, King brings us back to the story again and again, each time with a new perspective or clue.