It's Halloween in Greenbanks, PA, and it's all fun and games until an attractive, young and popular member of the community is found brutally murdered at the Riverfront Dog Park. Sasquatch, along with an escapee from a mental institution and some other ghoulish characters are suspects. It takes the combined efforts of law enforcement aided by Terry, Bonnie and Sean and some clever canines to solve the crime. 4th in the Riverfront Dog Park Series.