When a tornado slams into Promise, Oklahoma, only three of the town’s terrified residents know that an even more malevolent force has come to torment them—and they won’t live to tell anyone.

The Debris Killer is moving among them.

When Police Chief Charlie Grover finds three mutilated corpses in a ravaged farmhouse, his first thought is that the victims were impaled by flying debris. But his instincts tell him something different.

Enlisting the aid of a tornado-chasing scientist, he steps into a chaotic world of high-tech risk-taking in search of a cunning criminal… one he soon suspects is stalking him—and his vulnerable teenage daughter.