Mia, a cashier working alone at a remote gas station, is unexpectedly visited by her estranged boyfriend, Damon. Their tense encounter is interrupted when Damon suddenly retreats to the bathroom after spotting something outside. Mia checks the security cameras and sees a masked gunman, causing her to hide. But the masked figure is actually hunting a monster… Damon. The boyfriend quickly turns into a monster and devours the hunter. Terrified, Mia attempts a quiet escape but accidentally alerts him. She narrowly escapes, locks Damon inside, and sets the gas station on fire using gasoline from a pump. Damon dies, and Mia escapes.