It Comes at Night (2017)

A family has made their home into a fortress to keep the infected out. When a man shows up seeking water for his wife and young son, they decide to combine resources and invite the newcomer and his family to move in.

There was no exposition -- we were dropped into the story and expected to catch up quickly. The few big scares felt earned and the entirety of the film was bathed in dread. This is a good story told with economy.

B