Everybody knows there's no such thing as ghosts.
But don't tell true believers Abby Yates, Erin Gilbert, Jillian Holtzmann, and Patty Tolan.

Despite being humiliated and doubted, they're so sure that ghosts exist,
they're going to go into business to prove it ¬ even hiring a receptionist
out front to answer the phones. And when these paranormal pros figure out that
somebody is bringing ghosts back from the afterlife, they realize that not
only do ghosts exist - they need busting.

To save the world, who you gonna call?