Bite Your Tongue Pretty Little Liars : Season 4 Episode 17
TV-14 Freeform 44m
Aired: January 28th, 2014 @ 8:00 PM EST on Freeform
Hanna's interest in crime novels helps her to come up with a plan to figure out whose body is in Ali's grave. Spencer is working overtime to decipher the stories in Ali's diary.
