“Sorority Sister Killer” (** out of four) was an obvious, empty suspense thriller about a college girl (Sarah Fisher) whose best friend (Paige Kriet) is murdered under mysterious circumstances and she has to sort all this out and find out which one of the various sorority sisters (Grace Montie, Triana Browne, Brylee Russell, and others) may be responsible before she’s next or is charged with her murder herself. Picture-perfect definition of direct-to-DVD mediocrity with decent filmmaking and acting but predictable plot points at every turn. Horror filmmakers should “pledge” to come up with some different film ideas once in a while.