'Pretty Little Liars' season 5 spoilers: Aria-Ezra and Toby-Spencer relationship strained in episode 17

(ABC/Official Facebook page)Hanna sets out to clear her name of Mona's murder

The life of Hanna Marin (Ashley Benson) is about to get worse as 'A' plans to pin Mona's (Janel Parrish) murder on the blonde beauty. Viewers of the hit mystery and thriller series may remember that episode 16 ended with a definite sign from 'A' pinning Mona's murder on Hanna when it was revealed that the storage unit containing Mona's laptop and her body was registered under Hanna's name.

"Pretty Little Liars" is set to become all the more interesting with Hanna and her team of liars devising a plan to get her off the hook. Hanna will now set out to clear her name in the upcoming episode, according to the International Business Times. But clearing her name won't be easy for Hanna, as 'A' will definitely be up to his/her scheming tricks. The official synopsis of "The Bin of Sin" suggests that Hanna will take matters into her own hands, even though Caleb and her friends devise a safe plan to get her name cleared.

While Marin clears her name, things don't look so good for Aria (Lucy Hale) and Ezra (Ian Harding) nor Toby (Keegan Allen) and Spencer (Troian Bellisario). Aria spills the beans about her letter to the admission's office to Ezra while secrets between Toby and Spencer pile up and create a rift. Looks like the liar's love life isn't going so well.

Sara Shepard, who wrote 16 books of the "Pretty Little Lairs" series and whose books are loosely based on the TV series, is set to appear in a cameo, according to ET Online. The author and Pittsburg resident told ET Online: "It was really fun! I only had a couple of lines, but I was on the show in the first season. I don't act, it's not my thing, and I was really nervous that time, but this time around, I felt a lot better about it." She played the role of Ezra's substitute teacher in season one.

Shepard will make an appearance as a news reported in season 24. Watch "Pretty Little Lairs" season five episode 17 on Tuesday, Jan. 27, 2015 at 8 p.m. ET on ABC.

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