The Lady Killer

The Lady Killer is the twelfth episode and the summer finale of Season 3 of Pretty Little Liars. It will air on August 28th 2012. The episode is referred to as "#thebetrAyal" by ABC Family during its promos

​Synopsis
Garrett's trial starts, which turns Rosewood into a media spectacle. Meanwhile, Emily is at odds with the other Liars and doesn't know where to turn when the media attention becomes too much for her. Of course, "A" sees this as a perfect opportunity and sends Aria, Hanna, and Spencer on a path to a possible truce with Emily. But is A's peace offering real or just a trap for a much darker ending?

The Liars are also betrayed as someone very close to them is revealed as a part of The "A-Team".

Title

 * The title will be a reference to the killer of Alison or Maya. It could mean that one or both of their killer's is a female. It also means that a female from the show will come close to dying.
 * It may also have something to do with "The Lady Killers" - a 1955 British black comedy film made by Ealing Studios. A gang of five diverse oddball criminal types rent a two room apartment in an isolated house on a London cul-de-sac from an octogenarian widow with three pet parrots. The group's mastermind, Professor Marcus, tells her a cover story that they are members of an amateur string quintet and would like to use the rooms to hone their musical skills. In reality, they are plotting to rob a bank and plan to use Mrs. Wilberforce's naiveté and her Victorian sensibilities to their advantage. When the gang set out to kill Mrs. Wilberforce, they run into one problem after another, and they get what they deserve. Professor Marcus and the group are killed and Mrs.Wilberforce never die after all.

Main Cast
Troian Bellisario as Spencer Hastings

Ashley Benson as Hanna Marin

Lucy Hale as Aria Montgomery

Shay Mitchell as Emily Fields Sasha Pieterse as Alison DiLaurentis

Guest Stars
Bianca Lawson as Maya St. Germain

Janel Parrish as Mona Vanderwaal

Brant Daugherty as Noel Kahn

Ian Harding as Ezra Fitz

Keegan Allen as Toby Cavanaugh

Tyler Blackburn as Caleb Rivers

Tammin Sursok as Jenna Marshall

Larisa Oleynik as Maggie

Lindsey Shaw as Paige McCullers

Yani Gellman as Garrett Reynolds

Sterling Sulieman as Nate St. Germain.