"Castle" season 7 spoilers show that Nathan Fillion's character and Stana Katic's Beckett will log on social media to solve a murder in episode 5.

According to the "Castle" season 7, episode 5 spoilers by Cartermatt, the title of this particular episode is "Meme is Murder" which would provide the fans some idea about what it's going to be about. "Meme" is defined by Merriam Webster as "an idea, behavior, style, or usage that spreads from person to person within a culture." It's usually a funny Photoshopped image of a person that goes viral.

"Castle (Nathan Fillion) and Beckett (Stana Katic) are going to be challenged by a mystery killer that seems almost straight out of an episode of 'Sherlock' more than something that they traditionally deal with," it said.

And the killer is not afraid of the police. In fact, it's egging the police to play a cat-and-mouse game by making them guess who the next victim before they are killed.

Cartermatt said that there's no villain yet this season quite like the cyber sociopath, which makes this episode very interesting.

"While the mystery of what happened to Castle during his two months away is still out there, the show does not seem to be all that interested in addressing that right now," it added.

The synopsis released by ABC revealed some "Castle" season 7, episode 5 spoilers as it says: "Castle and Beckett investigate an Internet star's murder and find photos of the crime posted online by the killer, leading them to believe they're dealing with a social-media sociopath who may be looking for more victims."

"After five episodes dealing with Kate and her reaction to Castle's disappearance and Castle's return, we have yet to have an episode that focuses on other members of the team," Hypable noted.

Guest stars for "Meme is Murder" include Emily Davenport as Abby Smith, Maya Stojan as Tory Ellis, James Huang as Edward Han and Matt Pascua as Carlos Villegas,