We Were Liars S01E01 - Tell Me Sweet Little Lies

Every summer, Cadence Sinclair cherishes her time with her cousins Mirren and Johnny and her best friend Gat on Beechwood Island. At sixteen, what begins as their usual summer of mischief transforms when Cadence and Gat fall in love, while adult tensions rise in her family. She doesn't know this fairy tale will end with her alone on the beach, injured and with no memory of how she got there.