This article contains spoilers for We Were Liars.E. Lockhart’s We Were Liarsis the latest young adult literary phenomenon to receive the book-to-screen treatment. Unpacking the scintillating mysteries of the wealthy Sinclair family and a darkly fateful summer on their private island, this new thriller series premiered on June 18, 2025. Giving teen drama, Succession-style family politics, and murder-mystery all at once, We Were Liars already has the internet on fire discussing the shocking ending (no pun intended).