Following the events at home, the Abbott family now face the terrors of the outside world. Forced to venture into the unknown, they realize that the creatures that hunt by sound are not the only threats that lurk beyond the sand path.

The story of a young boy in the Midwest is told simultaneously with a tale about a young girl in New York from fifty years ago as they both seek the same mysterious connection.

A family lives an isolated existence in utter silence, for fear of an unknown threat that follows and attacks at any sound.