30 Days of Night (2007)

When their annual month-long polar night arrives around the corner, the town of Barrow, Alaska seems like all will be alright during that time, but all is far from alright. After strange things start to happen around the town, the town's sheriff Eben Oleson will soon discover the real horrifying truth to what's been going on: the town has been targeted by a clan of hungry, bloodthirsty vampires. After most of the town's people are killed off, the rest of population goes into hiding. With no way to call or get help from the outside world, it is up to the town's survivors to find a way to make through the month of darkness if they hope to survive.—alonzovillafra