Watched the movie late one night in the mid 90's, missed the title of it. It involves a daughter, possibly step daughter, who kills her mom with an axe to the head, while the mom was watching tv. The daughter loves to read true crime books ( helter skelter and the like). After she kills her mom, she panics because shes never killed before. After a little while of her freaking out the ghosts of a serial killer couple appear to her to help her out. That's pretty much what it does from there, she gets into more trouble and of course more famous serial killer ghosts appear to help her out. Its also a slight comedy if i remember right. Anyways if anyone knows the name of the movie i'm talking about, i'll be your best friend.