Don't think the story is extremely good; the messages are excellent and it's a fun mystery
From what I've read, the main character, apparently, thinks her cat is "bewitching" her. The author's overall message is good though, since it demonstrates how excuses are bad and how they can lead to harm. Jessica is clearly the one doing the bad things, yet she blames it on her cat, whom she didn't even have to get in the first place. She is very unlikable and seems to be unintelligent. This story is a reference to witchcraft and how making up lies to excuse bad actions could potentially result in fatal harm. I think the message is great, but I don't think highly of the animal abusing protagonist, who should be held responsible for her own misdeeds.