Hot for Teacher

Hot for Teacher is the eighteenth episode of Season 4 of Pretty Little Liars. It is set to air on February 4, 2014.

Synopsis
With Spencer's possible Board Shorts revelation, she is more determined than ever to prove her theory before bringing it to the other girls attention especially since it could have a devastating effect on one of the Liars. But with many sleepless nights fueled by prescription medication, Hanna starts to notice Spencer's odd behavior. Will Detective Hanna be able to figure out Spencer's secret before Spencer is ready to share?

Meanwhile, Emily looks to make amends with Alison through Shana, and all of Aria's lies start to take a toll on her.

Title and Background

 * It is revealed in "Love ShAck, Baby" that Alison wrote a story in her journal called "Hot for Teacher"; Spencer is then seen taking pictures of it. It is this story that Alison wrote the details of her date with Ezra Fitz.
 * Hot for Teacher is a song by Van Halen.

Main Cast

 * Troian Bellisario as Spencer Hastings
 * Ashley Benson as Hanna Marin
 * Shay Mitchell as Emily Fields
 * Lucy Hale as Aria Montgomery
 * Sasha Pieterse as Alison DiLaurentis
 * Janel Parrish as Mona Vanderwaal

Guest Cast

 * Keegan Allen as Toby Cavanaugh
 * Ian Harding as Ezra Fitz
 * Aeriel Miranda as Shana
 * Wes Ramsey as Jesse
 * Nikki SooHoo as Brenda

Trivia

 * Filming began on August 22, 2013 and ended on August 31, 2013.