MaryBeth is just your average housewife with two perfect children, an amazing husband, and a lot of land she simply adores. When a new virus crops up, the government issues a flu shot they urge the citizens to get. To protect the public, and themselves.

For your safety.

Something doesn't feel right. She's standing in line to get her shot, doing the right thing as any good mother will do when a man bursts through from the back. He doesn't look so good. When he falls at her feet and whispers a word she prays she didn't hear, things unravel.

The shot will help, right?