B.O.O. (Bureau of Otherworldly Operations) is the super classified agency you've never heard of and certainly never seen. Dedicated to protecting humans from evil hauntings, the agents of B.O.O. have a secret weapon: they are ghosts themselves. When newbie agents Jackson Moss (Seth Rogen) and his odd-ball partner Watts (Melissa McCarthy) uncover a plot to destroy B.O.O. by the agency's Most Wanted Haunter, they must use every trick in their arsenal to defeat his powerful ghost army and save Earth from a ghostly fate.

B.O.O. (Bureau of Otherworldly Operations) is the super classified agency you've never heard of and certainly never seen. Dedicated to protecting humans from evil hauntings, the agents of B.O.O. have a secret weapon: they are ghosts themselves! When newbie agents Jackson Moss and his odd-ball partner Watts uncover a plot to destroy B.O.O. by the agency's Most Wanted Haunter, they must use every trick in their arsenal to defeat his powerful ghost army and save Earth from a ghostly fate.—20th Century Fox