R.I.P. "PLL," a great TV series about young female friendship edition.cnn.com

'Pretty Little Liars' comes to a close but the show's message about female friendship endures. Pretty Little Liars" — a show that for seven seasons prided itself on engineering implausible yet addicting twists that kept its cult-like following coming back for more — ended its run on Tuesday with the five young women at the center of the series joined in a group hug as one of them prepared to embark on her honeymoon.