Killer Frequency

We’re on in 3…2…1… A radio host working at night is ordered by his superiors to hold a contest among listeners. They must guess what kind of scream they hear and give the reason for it. Maybe the man cut off his finger with a chainsaw, or he is drowning. Here comes the first caller! A woman in a panic says she discovered a dead body! Anyone would have thought it was a cruel hoax, but it seems to be true. The sheriff is murdered. Now who’s going to investigate the crimes, and who’s the next victim?