Two years have passed since the first murder occurred and although we have tried to hunt him down, we have no trail. The "whistler" they call him. All witnesses describe the same thing they hear the night of each murder-a whistle. For years the brutal slaying of several small young families and the disappearances of several children have burdened the lives of those living in Church Hill. However, when the killer attacks the young Dumont family in Helm. Detective Matthew Adams vows to stop him. However, trouble stirs as he faces his greatest challenge yet; working with a partner. Together, they must try and stop the killer before he strikes again. With everything on the line, will Detective Matthew Adams be able to catch the killer? Or will he become the prey?