Billy Maguire, on his way to Scotland for a reunion with his university friends, stops for a few drinks en route. Then, on the deserted roads leading to the remote location, he manages to run over a pedestrian.

The man is alive, and Billy puts him in the back seat of his car, planning to leave him outside the nearest hospital. But then the man dies—and Billy panics. He drives to the reunion with the body in the car and begs his friends for help.

Tension swirls within the group at first, but when the dead man's ID reveals him to be a notorious criminal named Dougie McCool—and cash, a mask, and a knife are also found in his backpack—they're almost unanimous in the decision to get rid of the body and keep the money. The only problem is that some dangerous men are looking for McCool—including his brother, who is willing to brutally exploit every vulnerability in this circle of friends to get what he wants...