Anyone wanna gimme a summary or tell me anything that's important that I should know?

Here's what I do know:

-Dana keeps gettin sent back in time to help "save" Rufus
-Everytime she gets sent back it gets worse and worse
-Rufus is Dana's Grandfather
-Rufus must rape Alice in order for Dana to be born
-Rufus ends up to be just like his father and tries to rape Dana
-Dana ends up stabbing Rufus

What am I missing? And also if Dana stabs Rufus wouldn't that mean Dana shouldn't be born either?

*SHRUG*

 

aliced already raped hench the starting of the bloodline