Have you ever wondered what lurks in the shadows behind a streetlight and lies in wait to ambush its vulnerable prey? Could the flickering of a faulty light actually be an encoded message? In the town of Clarksville, Pennsylvania stands a solitary, disheveled streetlight on the corner of Summit Street and Chartiers Road. On a hot summer evening in July of 1985, Ralph Dubain discovers an eerie secret that challenges all rationality he possesses. The mystery around the streetlight’s ominous phenomenon might just reside in a local 10-year-old boy, Jasper Callahan.