On the midseason premiere of Pretty Little Liars season 4, Ezra (Ian Harding) will be acting extra creepy and evil now that he has been revealed to (probably) be "A."

Ezra will be teaching his students about Dr. Jekyll and Mr. Hyde in the season 4B premiere, according to a new report by TV Guide. The subject is likely a metaphor for Ezra's own double life he leads. Elsewhere, the girls are persistent in figuring out who was in the grave now that they know it's not Ali (Sasha Pieterese). Their hunt will ultimately lead them to a story that is "eerily similar" to their own.

In other Pretty Little Liars spoiler news, ABC Family released a synopsis for the episode after the midseason premiere, which is titled Love ShAck Baby.

In the episode, the girls will hope to get answers to their questions now that they've discovered that Hanna (Ashley Benson) is in possession of Ali's diary. The girls discover that the diary is filled with coded messages, so they each have to investigate which stories are about them. Their main goal is finding out who has been going after Ali all of this time.

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The girls soon discover, however, that the stories are very personal, so each of them has to decide whether or not they want to share it with the group. Meanwhile, Spencer (Troian Bellisario) is suspicious of her father's dealings with Mrs. DiLaurentis (Andrea Parker).

Pretty Little Liars season 4 returns Tuesday, Jan. 7 at 8 p.m. on ABC Family.

Ashley Benson Slams Official Pretty Little Liars Season 4B Poster as Bad Photoshop 

Watch a trailer for the next episode of Pretty Little Liars here:

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