Grace (Skyler Samuels) is on a mission -- and it’s to find out the identity of the baby that was born in Kappa Kappa Tau’s bathroom 20-something years ago. But during episode 8 of “Scream Queens,” titled "Mommie Dearest," the newsboy cap-sporting sorority sister uncovers the shocking truth: she’s not that child.

During the Season 1 installment, Chanel (Emma Roberts) hires foreign private eyes to prove that Grace and Zayday (Keke Palmer) are the Red Devil killers. But all the detectives are able to uncover is the crime-ridden past of Grace’s mother.

“The b---- apple doesn’t fall far from the b---- tree,” Chanel says after taking a glimpse at the file of Grace’s mother.

When Grace makes her way to the Kappa house (after learning the alarming news that her father Wes [Oliver Hudson] and Gigi [Nasim Pedrad] are engaged) she’s bombarded by the sorority’s menacing leader. Chanel tells Grace that she can see straight through her “sweet and cuddly” façade. She then accuses Grace of being the killer before unveiling the startling identity of her nemesis’ mother.

Chanel explains that Grace’s mom is the very same Kappa who wanted to make TLC’s “Waterfalls” the official house song. (That’s right, Grace’s mom was the party girl who was disgusted to learn that a sister gave birth during KKT’s biggest bash!)

“She ended up hooking up with a d-----bag by the name of Wes Garden [and] almost exactly nine months later she had you,” Chanel says. “You always suspected you were the baby in the bathtub, didn’t you?”

Chanel then reveals her own theory, which involves Grace (who she thinks is the Red Devil killer) wanting to get revenge for the death of her mother by slaughtering all the sorority sisters. The KKT co-president adds that Grace’s mom was a shoplifting drunk who killed herself after wrapping her car around a tree.

Wes confirms Chanel’s horrifying story. “I was trying to protect you,” he says, explaining to his daughter why he kept the identity of her mom a secret. But Grace is livid and tells her dad to stay away from her -- after all, she is her mother’s daughter and might just do something crazy.

The episode ends with Denise (Niecy Nash), who swindled her way into the position of KKT housemother, telling Chanel to apologize to Grace for what she said about her late mom or else she’ll be calling Chad (Glen Powell) for a late-night rendezvous. Reluctantly, Chanel agrees, and meets up with Grace at a cafe along with an apologetic coffee. She tells Grace she’s sorry for ambushing her with that eye-widening information. Chanel even confides in Grace, revealing her own tragic relationship with her mother (who made her miss her graduation due to a zit).

“We all have mommy issues!” Chanel tells her.

Other Major Moments From Episode 8

  • Dean Munsch (Jamie Lee Curtis) is attacked by three killers during episode 8. However, the dean manages to survive the deadly encounter thanks to her insane fighting skills.
  • Candle vlogger (Breezy Eslin) reveals to Denise that Zayday is determined to seek “real revenge” on rich girls everywhere after getting bullied in high school.
  • Candle vlogger gets killed while vlogging. (Now we’ll never get to know which holiday candle to buy!) The killer then turns the corpse Jennifer into a human candle.
  • Pete (Diego Boneta) and Grace uncover that Gigi is the Hag of Shady Lane. They also learn that Gigi was caring for two children -- a boy and a girl.
  • Wes and Gigi get engaged – but only because Gigi bought herself her own engagement ring! (Wes was just in it for the engagement sex.)
  • Boone (Nick Jonas) is back! The Dickie Dollar Scholar is getting bored of working out and killing people -- not to mention, annoyed with Gigi, who is ruining their grand plan of seeking revenge. “Gigi’s gotta go,” Boone says to his mysterious co-conspirator.

“Scream Queens” airs Tuesday nights at 9 p.m. EST on Fox.