The Cutting Room Floor by Dawn Klehr

  The Cutting Room Floor is a suspenseful YA thriller that focuses on two best friends, Desmond and Riley.  Riley is an aspiring actress while Desmond is destined to become a director.  When the book opens we find that Riley has lost her favorite teacher, Ms. Dunn, in a heinous murder.  While navigating through other life struggles, Riley tries to crack the case.  Desmond is her shoulder to cry on but he has an agenda of his own.  There are many twists and turns along the way with a surprisingly realistic ending.
  The chapters alternate between the points of view of Desmond and Riley, with Desmond's chapters frequently opening in film script form.  Some people don't care for the back and forth of alternating points of view, but I didn't find it distracting in this particular story.  At some points I found myself putting the book down because I couldn't take the suspense (the reader knows more than the characters in the book), so if you're looking for something to get your blood pumping in this cold weather try The Cutting Room Floor.