Pretty Little Liars S4E17: Bite Your Tongue

  • Aired: 2014-01-28
  • Time: 20:00:00
  • Runtime: 60 minutes
Watch Episode

Overview

Aria's brother befriends Mona, but Aria disapproves. Elsewhere, Spencer digs into a new lead from Ali's diary and uncovers something shocking; Hanna's love of crime novels leads her to investigate Ali's grave; and Emily's dad grows worried about her.