This is a tricky little investigation designed for 2+ characters. The specific setting can be anywhere in the continental US or Canada, so the GM is encouraged to create detailed maps and other props to assist players in visualizing the adventure.
BPI: If the characters are agents of the BPI or Sedgewick Society investigators, they may be called in due to the strange nature of the sightings, and destruction of private property.
Hired: The characters may have been brought in by local police, F&J Construction, or Master Auto Parts.
Curiosity: The characters may read details about the sightings and decide to investigate.