30 Days of Night (2007) on Netflix

In Barrow, Alaska, seventy percent of the population of five hundred and some dwellers travel on the day of the last sunset, since the town will stay alone for the next thirty days without sun light. Sheriff Eben Oleson and Deputy Billy Kitka find several cell phones burned on the road. Then they receive a call from the local caretaker saying that all his sled dogs have been slaughtered; later Eben finds the operator of the cell tower decapitated. He arrests a troublemaker drifter and the stranger frightens him by saying, "they are coming and the locals will be dead." Soon Eben discovers that the town is under siege by a gang of bloodthirsty vampires and with a few survivors, they hide in an empty attic waiting for the next sunrise.