The movie's narrative revolves around Dr. Evan Baxter (Ethan Hawke), a scientist who finds himself at the forefront of a desperate fight for survival. The vampiric apocalypse serves as a backdrop to explore complex themes such as human nature, morality, and the consequences of playing with forces beyond human control. The film's use of dark, gritty visuals and an eerie atmosphere effectively transports viewers into a world on the brink of collapse.