The permises for the third movie sounds interesting and original
For those who don't know the plot, a young man travels back in time to solve the mystery of his high school girlfriend's death, but in doing so releases a vicious serial killer.
It's great that they chose to do something different instead of the same "Going back in time, simply to right the wrongs of the past, but uh-oh! Something bad happens!"
Think about it, the killer could end up slaughtering the main character's family, and could leave for a really great ending about how he would solve it.
I believe whatever doesn't kill you simply makes you...stranger. -The Joker