Watch Pretty Little Liars S01e18 The Badass See... Today

: "A" plants a bloody trophy that the girls eventually discover is covered in rat blood, rather than human blood, after investigating a golf tournament that never happened.

The central conceit of the episode is Ezra Fitz’s staging of The Bad Seed , a play about a murderous child. The Pretty Little Liars Wiki notes that the play eerily reflects the Liars' predicament: an 8-year-old who kills a classmate for a medal serves as a blunt metaphor for their own "bad seeds"—the lies they’ve told and the secrets they’ve buried. Watch Pretty Little Liars S01E18 The Badass See...

: Spencer is increasingly convinced that Ian Thomas killed Alison. Her paranoia is fueled by a dream of a baby in a bassinet being approached by a mysterious figure, which is interrupted when she finds Ian taping boxes in her living room. : "A" plants a bloody trophy that the

: Tensions remain high as Emily deals with Paige McCullers' erratic behavior and harassment on the swim team. Analysis: Defining Evil : Spencer is increasingly convinced that Ian Thomas