A retired vampire hunter comes to the States to visit his twin brother. Unbeknownst to him, the small backwoods town where his brother lives and the people in it are being overrun with ticks that have been injected with a toxic chemical compound. The bites from these ticks have an unfortunate side effect, they turn people into blood thirsty zombies.

GRIMY is the story of an undercover officer named Rogers. (Maurandis Berger) He is the only one who can get in close enough to these criminals that terrorize neighborhoods with drugs and violence. He is often assigned to neighborhoods that he grew up in, but he finds himself becoming part of the problem as he almost becomes what he's trying to bring down. Now Officer Rogers must make a choice of which side he will take, his oath or his feelings.