Cry_Wolf (2005)

Everybody likes to have fun and play games of deception. There’s nothing inherently wrong with a bunch of spoiled high-school kids who exploit the murder of a defenseless young woman in their neighborhood to taunt gullible classmates with clues that a serial killer is on the loose. After all, even the most morbid pranks are all in the spirit of a good-natured hoax, until people start showing up dead. Then the callous punks can go ahead and Cry_Wolf (2005) until their throats are raw, and no savior is coming to keep the knife from their gullets.