On a cool March night, in a small Midwest lake town, an object comes hurtling out of the sky without warning, crashing into the center of the lake. The impact creates a sudden tidal wave that slams into homes, businesses, and people. When everything settles it leaves seven dead and a town full of stunned and grieving citizens. They thought that night was the worse their town had to face. They were wrong. What was thought to be a simple meteorite turns out to be something far worse—an alien parasite that turns law-abiding citizens into emotionless killers; but killers with a sinister purpose.