This plugin aims to provide a simple and fun Minecraft Manhunt experience that is great for events and videos that requires no setup at all. Just load up a world and run the command to start the game.
This plugin requires CommandAPI, it can be found here
To setup the plugin all you have to do is put both the plugin and CommandAPI in your plugins folder, delete the worlds that your server currently has and start the server. After that the plugin is all ready to go. When a game has ended you can simply stop the server, delete the worlds and restart with a new world and do it all over again.