Pretty Little Liars dominated the airwaves throughout the 2010s and had fans young and old in a chokehold from Season 1 all the way to Season 7. The series follows a clique of teenage friends reeling from the death of their leader and best friend — Alison — who begin receiving threatening and cryptic messages from a stalker known only as A, who taunts them with secrets only Alison knows.
Source：https://www.cbr.com/pll-best-characters-ranked/
