A part of me doesn't want to spoil the premise, but another part of me really wants to describe it to you, so screw that first part of me.
You are a werewolf who happens to own an ice cream truck. By day you drive around town, playing your ice cream truck music and serving children with a smile. But as night approaches, it's up to you to lure the fattest children back to your lair, whereupon you'll transform into a wolf and eat them for bonus points. There's nothing about this that isn't awesome. Play it now.