Jeffrey Murdoch portrays Ed Kemper, a serial killer who murdered 10 people, including his own grandparents and mother, according to The New York Times. In Monster: The Ed Gein Story, Kemper also joins Manson, briefly appearing in Gein's dream sequence, where he tells Gein he's "very much a role model" to him.

Among the many creative liberties taken by the hit Netflix show "Monster: The Ed Gein Story" is a final episode arc in which killer Richard "Birdman" Speck professes to idolize Gein and even corresponds via letter with the confined Wisconsin murderer.

Gein was never officially tied to his brother’s death. Gein’s older brother Henry (played by Hudson Oz) makes a brief appearance in the first episode, only for Ed to murder him. In the show, after Henry threatens to move in with a twice-divorced woman,

"If people are compelled to talk about it and think about it, hopefully they’ll actually be compelled to watch the show," Hunnam, who plays the killer, said.

Ian Brennan, one of the creators of Netflix’s “Monster” series, told TODAY.com during the “Monster: The Ed Gein Story” red carpet premiere that murderers like Ted Bundy will never get the “Monster” treatment.

Now that more reviews have come in, the Rotten Tomatoes score of Ed Gein has sunk more than 20%, and now stands at just a 23% critic score. That’s below the previous two Monster entries, and also Netflix’s True Crime serial killer series, Conversations with a Killer. Here’s how the list breaks down:

Shortly after his arrest, court-appointed psychiatrists diagnosed Gein with schizophrenia. He spent the rest of his life in mental hospitals receiving treatment. After initially being deemed mentally unfit to stand trial,