Another new idea of mine. Not sure if I'll get to this one immediately, but it has been in my head a lot recently, so you may see more of it soon.
In the innocent, quiet town of Oakhaven, all is peaceful and no despicable crimes occur. But when the sun goes down, demons from the depths of Hell rise to wreak havoc and chaos upon those who dare stay up past their bedtime. This is due to an unbreakable curse that Oakhaven was given 200 years ago. One day, a trio of monster hunters (married couple Anton and Anna and their demented friend Gustav) visit the town, in hopes of finding new ghosts and goblins to devour for fun. The trio are equipped with advanced technology to utterly destroy any demon who emerge from Hell. The citizens of Oakhaven question the gothic appearance of the trio, as well as their methods in destroying the monsters, but the trio ignore the controversy - all they want to do is kill demons for fun.