In a seemingly normal small town, a loud sound is heard in the sky.
Almost immediately, many people get gruesomely sick. After the sickness, people go STILL.
The Still or sort of like zombies, but they never seem to move while people are watching them. They just stand there, staring.
When people look away from them and then look back, they are usually much closer. When they get close enough, they can grab a person, and then they join the ranks of the Still.
Effective use of sandwiches and repeating news broadcasts. I like the series so far.