Sad video in which Hermione travels back in time to stop Tom from being evil, but falls for him. She leaves back to her time, breaking his heart. In her present time, she learns that she is the reason Tom became Voldemort.
Basically a video where the son of Voldemort, Caleb Riddle, goes to Hogwarts and tries to lead a normal life, despite his heritage. He falls for Hermione (awwww) and Voldemort tries to get him to tham gia the Dark Side. It's a bit long, but worth it.