Simon and Clara, a pair of young self-proclaimed paranormal investigators, chase after a ghostly old 1917 police car as it races through the rustic town of Caligo Falls toward a creepy old shack in the forest, the location of a shocking murder that took place in 1922. The two best friends set off on a sometimes terrifying quest to solve a series of long forgotten murders and clear the name of Bobby Finch's grandfather, a destitute World War I veteran who took his own life.
With help from a few of their ghostly friends, Simon and Clara must utilize all their paranormal investigative skills to solve the four heinous murders before they leave for college in the fall.