Red Like Blood(2005)

A young female reporter has the brilliant idea to create a fake video report on everyday crime, ranging from fights between couples that end with murder, friendships that end up ruined forever, incest, rape, to even drugs and accidental deaths. She finds a friend who is obsessed with his camera and asks him to do the mockumentary for her voluntarily. He agrees and both start recruiting amateur actors, friends and people who like the idea playing in front of the camera. The fake scenes soon become real.