The official description goes a bit like that:

“Spooks” is as close to the Land of the Dead that you can get with a pulse. In this immersive Sierra-style adventure, you play as Mortia, an adorably cynical ghoul girl. The game starts with your average visit to the Carnage-Val, a theme park where the only thing more dysfunctional than the rides is the staff.

When a smooth-talking carnie convinces Mortia to play a game of darts, the last thing she expects to win is a live goldfish. After all, there hasn’t been a living thing in the Land of the Dead for a very, very, very long time. Suddenly Mortia has to figure out how to save her little fish, who she calls “Spooks,” from a decidedly deadly end.