Pretty Little Liars' stalker will have Rosewood's sleuths on the offensive in the season 6B finale.

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The Liars are up against another unknown enemy - or two, if you believe Emily's theory - and Uber A is getting bolder by the minute. Whoever is stalking the Liars is hell-bent on learning the truth behind Charlotte's murder, and when "Hush, Hush, Sweet Liars" rolls around, the big bad will be contemplating a little homicide of his/her own.

"With the stalker threatening to kill all of them if they don't divulge Charlotte's killer by the election, the PLLs and company, at wit's end, must boldly fight back," Freeform teased.

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Does this mean the killer is somehow linked to the campaign? From Yvonne Philips to Mona to the Hastings clan, there are plenty of viable suspects who could see their hard work torn down if a dirty secret was to come out as voters head to the polls.

While viewers wait for the finale, secrets will continue to come to light as Pretty Little Liars airs "Burn This" and "Did You Miss Me?" Somewhere in the midst of the next three episodes, the drama will reveal that someone has an identical twin.

Catch Pretty Little Liars Tuesdays at 8 p.m. ET on Freeform.

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Pretty little liars, Television, Freeform