In Episode 5 of "Castle" Season 7, Kate Beckett and Rick Castle are pitted against a "social media sociopath." The two will be seen exploring the "flashy world of Internet fame," according to the synopsis of "Castle" Season 7 Episode 5, which is titled "Meme Is Murder."

ABC has released a sneak peek of the episode. It features Castle and his mother Martha. Martha is seen helping her son prepare for the shooting of a commercial for his latest novel in the "Nikki Heat" series, "Raging Heat." According to ABC, Castle is set to "enter the digital world like never before."

It looks like Martha lands up at a bookstore, where the shooting is taking place, telling Castle that she is just coming over to watch him. The sneak peek indicates that she starts fixing Castle's look and also ends up giving him unsolicited tips, as she discovers that her expertise was needed. Castle, however, is seen telling her that he has done the commercial shooting before and he knows what he is doing.

In the sneak peek, Martha also points to Castle that a man is filming him with his phone. Castle is seen explaining to her that it is "behind the scenes stuff," which is part of the campaign. It is tapping into the whole 360 degree digital media environment, according to Castle.

Castle turns on the charm and almost gives a perfect shot. "Hi, I'm Richard Castle. Are you looking for a bone-chilling, spine-tingling thriller full of twists and turns? If you are, look no further ... latest novel, "Raging Heat," Castle is seen saying in his commercial shoot. He adds that the book will keep the readers hooked till the last word. At the end of the sneak peek, he disturbs the carefully arranged, display pile of his books.

According to the official synopsis of "Castle" Season 7 Episode 5, "Meme Is Murder," "When a web celebrity is murdered, Castle and Beckett explore the flashy world of internet fame. But when the killer posts pictures from the crime scene on a photo-sharing site, they realize they are up against a social media sociopath who may strike again."

[Youtube/CastleVitalScenes]