A beautiful and distinguished family.
A private island.
A brilliant, damaged girl; a passionate, political boy.
A group of four friends—the Liars—whose friendship turns destructive.
A revolution. An accident. A secret.
Lies upon lies.
The wealthy, beautiful, blonde Sinclair family summers each year on their private island. But something happened Cady’s fifteenth summer, something so awful she’s blocked it from her memory. Two summers later she returns to the island determined to unravel the secret.