"Plague Town" has something many horror movies are lacking, especially the more recent ones. That being charismatic, interesting characters.
The family members really don't get along too well, resulting in humorous dialogue which works in the context of the scenes. Even when it's clear something isn't right, the father tries to prevent his daughter from leaving, thinking it too dangerous. Of course when her boyfriend volunteers, said father encourages him.
The problem? Well, after people start dying, without expendable characters the character dynamics fall apart, resulting in a horror movie considerably less entertaining when the horror begins than previously.
At "Gorezone Weekend of Horrors", it did have one scene which made the audience gasp due to shock. I'm not spoiling that part.