Pretty Little Liars will serve up a little horror with their answers this summer.

'Pretty Little Liars' Season 6 Spoilers: What Does Alison Know About Charles? Sasha Pieterse Previews Revelations

The sixth season will dive into the mystery of one Charles DiLaurentis, but the Lairs will have to go through hell and high water if they want to shut 'A' down once and for all.

"We start to find out things about Charles and it just gets more disturbing, more disturbing and more disturbing," Sasha Pieterse (Alison) said, according to She Knows, calling the summer run "horror-esque."

'Pretty Little Liars' Season 6 Spoilers: Episode 3 Plot Revealed, Liars Break Apart In 'Songs Of Experience'

If the teens can manage to survive Charles' latest onslaught, they will finally be able to unmask their long time tormentor. By time "Game Over, Charles" rolls around, answers will be coming fast and furious. Viewers will not have to wait through the midseason time jump to get the juicy details.

"I think the fans will be satisfied, especially before the time jump," Pieterse told She Knows. "And after I think it's going to be a cool way to connect everything."

Find out more when Pretty Little Liars returns to ABC Family on June 4 at 8 p.m. ET. Click the video below to see a preview for the season 6 premiere.