That Girl is Poison

That Girl is Poison is the fifth episode of Season 3 of Pretty Little Liars. It will air on July 10, 2012.

Synopsis
On the same night as Jenna's birthday party, Garrett gets a pass out of jail to visit his ailing mother. The Liars are all convinced that it has something to do with 'A'. Each of the girls play a different role during the night. Emily will get an insiders view while working the party, Aria will be working the crowd as a go-getter and Spencer will be staked out at Radley Sanitarium.

Meanwhile, Hanna's wallowing through her recent heartbreak leads her to a shocking discovery.

Title
The title of this episode is taken from the 1990 song “Poison” by New Edition spin-off group Bell Biv DeVoe. Some of the lyrics are:

She's so fly

She'll drive you right out of your mind

Steal your heart when you're blind

Beware she's schemin', she'll make you think you're dreamin'

You'll fall in love and you'll be screamin' demon.

Main Cast
Troian Bellisario as Spencer Hastings

Ashley Benson as Hanna Marin

Lucy Hale as Aria Montgomery

Shay Mitchell as Emily Fields