In Horror Mansion, Daniel is forced to leave the place he thinks of as his hometown. The problem that Daniel has to deal with is that now he's trapped in a haunted mansion. There are plenty of spooky monster girls, and one stands supreme over all of them. It's Ghost Girl, and she captures Daniel's girlfriend. Somehow he's got to find a way to escape while saving his girlfriend from the haunted mansion. It's not the easiest task in the world to complete, but Daniel's love for his girlfriend keeps him strong throughout all this.