As Millwood deals with the aftermath of recent events, Imogen uncovers secrets that may unmask 'A'. Beasley gets closer to the truth, and Tabby tries to retrieve some evidence.
The friends attempt to get to the bottom of one mystery while Imogen pursues answers to another. A girls' night prompts Sidney to confront her daughter about a long-held secret.
As A doubles down, the liars must work quickly to uncover the link between Angela Waters's death, their mothers and their mysterious foe before it's too late.
