Looks like the Liars haven't quite escaped their Rosewood roots.

The first trailer for the Pretty Little Liars spin-off series has landed - after it was confirmed it was given a full-series order.

Freeform handed out a pilot order for Pretty Little Liars: The Perfectionists - based on the Sara Shepard book of the same name - late last year.

The series will star Sasha Pieterse and Janel Parrish, who will be reprising their roles as Alison DiLaurentis and Mona Vanderwaal.

But rather than returning to Rosewood, the series will be taking place in the town of Beacon Heights - which, from the sounds of things, is even more dramatic than Rosewood.

https://www.youtube.com/watch?time_continue=35&v=qME1EbCMNZk

The show’s description reads:

"Everything about the town of Beacon Heights seems perfect, from their top-tier college to their overachieving residents.

“But nothing in Beacon Heights is as it appears to be.

“The stress of needing to be perfect leads to the town’s first murder.

“Behind every Perfectionist is a secret, a lie and a needed alibi."

The trailer was released following the news that the Pretty Little Liars spin-off has been picked up for a full season. Sofia Carson, Sydney Park, Eli Brown, Graeme Thomas King, Kelly Rutherford, and Hayley Erin will also star in the series. The 10-episode first season of Pretty Little Liars: The Perfectionists is expected to debut some point in 2019.