Marty Buckner (Logan Lerman) is a high schooler, chasing after the love of his friend, Annabelle Otto (Maika Monroe). But, when Marty and Annabelle stumble upon a spell book they accidentally bring to life the characters of the arcade game, Pac-Man. A local occultist/hypnotist by the name, Marcus Odin (Oscar Isaac) gets ahold of the spell book that caused the ghosts to come to life. He casts a spell over them and uses them to destroy the town. Realizing the power he has obtained he changes his form and calls himself, Mezmeron.
Marty and Annabelle in return meet Pac (Bradley Cooper), who has battled these ghosts on numerous occasions and knows the severity of the situation. Pac tells them that anything that what takes place in the game does not apply to the human world and the only way to stop the ghosts is to fight back and use the book against them. But, Mezmeron already has the book and using the ghosts to help him take over not just the town, but soon the world.
Knowing that time is running out, Marty and Annabelle must do battle with the ghosts and try to lure them into a trap while Pac takes on Mezmeron in an attempt to take away his power. Can Marty and Annabelle outsmart the ghosts? Does Pac save our world as we know it? Or will Mezmeron and the ghosts destroy civilization and become our masters?
