Pretty Little Liars season 4 episode 17 is going to be our one-way ticket to an interesting storyline featuring Hanna as the lead detective. It seems that our Liars are going to be very busy this week as they try to decipher who is the person behind "A" and the one who got buried in Alison's coffin. The intensity of the series is going to be extreme as the girls set forth to come into terms with what they have and use them as weapon to this long-running mystery. There is also the chance that Emily might be in big trouble. Don't miss the all-new episode, which airs tonight at 8/7c on ABC Family. You may also simply watch Pretty Little Liars season 4 episode 17 stream through the free online stream link found below.

After last week's episode, where we saw Shana returning to Ravenswood to tell Emily that she has a very important message from Ali, this week, the series will pick up from where it left off and will present to us another interesting storyline for our Liars. First, there's crime solver Hanna, who after realizing that she has this zest for crime novels, planned an investigation to unravel the identity of the person buried inside Alison's grave. Well, hopefully she is going to find what she's looking for. Elsewhere, Spencer is going to do some hunting and exploring on her own using Ali's diary as her guide. Spencer wants to find out who Ali's mystery man is, but she might not be following the right path. Instead, she and Hanna will meet along the way and will somehow be drawn into A's path. Sounds interesting, eh? Watch Pretty Little Liars season 4 episode 17 stream using the free online stream link provided at the bottom.

Interestingly, we found out that the episode is going to be pretty intense and disturbing when someone pays Emily a visit late at night. Is she in grave danger? A sneak peek to Pretty Little Liars season 4 episode 17 titled "Bite Your Tongue" hints that Emily will find herself in a very suspenseful and compromising episode when an unknown person tries to get in her house in a very frightening way. At first the preview teases that it could be Emily's father who is trying to enter the house, but some things look a bit strange especially when some unnecessary noise alarms Emily's sanity. Tune in on ABC Family tonight for the all-new episode. Watch Pretty Little Liars season 4 episode 17 stream using the free link found at the end of this post.

Other things to watch out for in tonight's episode include Aria's ordeal with Mike's new friend. Spoilers dished that Aria might be a little upset with "Mike's new friend," but who could the spoilers be referring to? To find out more about the upcoming episode watch the sneak peek below, and watch Pretty Little Liars season 4 episode 17 stream by clicking the free online stream link at the bottom.

The official synopsis for Pretty Little Liars season 4 episode 17 "Bite Your Tongue" reads: "Hanna's new interest in crime novels helps her to come up with a plan to try and figure out whose body is in Ali's grave. While Hanna is on her hunt, Spencer is working overtime to decipher the stories in Ali's diary which she hopes will reveal the identity of Ali's mystery man. But with both girls hot on the trail, will their work lead them straight into "A's" path? Meanwhile, Aria is upset with the new friend Mike has made and Emily's dad is concerned about her behavior."

"Bite Your Tongue" airs this Tuesday, Jan. 28, at 8/7c on ABC Family. Watch Pretty Little Liars season 4 episode 17 stream using this free online stream link here.