Food has been mysteriously disappearing from Castle’s place lately. Alexis suggests that tiny borrowers have been coming out at night. Castle scoffs at the notion. They’d be way too small to pull open the fridge. Castle vows to solve the case of the missing leftovers, but first he must tackle a more pressing murder mystery. Anne Cardinal succumbs to her ghastly wounds after being dumped in front of a hospital. Her face bears a claw-like wound. It could have come from her job site, as the victim worked an animal sanctuary for primates.
Dr. Paul Devlin was Anne’s faculty adviser at Hudson University. None of the animals at his sanctuary have ever shown any aggressive behavior, but Castle fingers a big gorilla named Moonshine as a primate suspect. He believes Rise of the Planet of the Apes was a cautionary tale. The do-gooder ex-con who dumped Anne at the hospital leads the team to the alley where she was killed. Castle believes the footprints they find belong to the killer. They are huge, beast-like impressions. Castle realizes this can only mean one thing. The killer they seek is the legendary Bigfoot.
Beckett is more interested in the other set of smaller, human footprints in the alley. Still, the last phone call the victim made was to the world’s foremost authority on Bigfoot, Dr. Darrell Meeks (guest star Raphael Sbarge from Once Upon a Time). The guy says Anne may have had evidence that the legendary beast made his way into the city. She could have been targeted by someone looking to cash in on a TV show’s million dollar reward for evidence of Bigfoot. Anne was, indeed, seen arguing with Chase Diggins, an Australian hunter who lost his hand in an alleged Bigfoot attack. The hook he now bears could have left the wound on Anne’s face.
Chase Diggins says Anne drew him to the city after she claimed to have found a squatch. His boot print was in the alley where she was making fake Bigfoot prints. Diggins believes Anne was doing this to throw of others because she found the real Sasquatch. In other news, Perlmutter discovers a pendant in the murder victim’s stomach. She swallowed it around the time she was attacked. It belonged to her old college roommate, Justine Bolton, who was murdered a year ago.