You can get in. But you can't get out. Welcome to the library...
Twins Ana and Nan are lost after the death of their mother.
Everyone knows who drove Elena, the renowned novelist, to suicide - her long-term literary critic, Eben. But the twins need proof if they're going to get revenge.
Desperate to clear his name, Eben requests access to Elena's diaries at the National Library where the twins work, and they see an opportunity.
With careful planning, the twins lock down the labyrinthine building, trapping their colleagues, the public and most importantly Eben inside. But as a rogue security guard starts freeing hostages, the plan unravels. And what began as a single-minded act of revenge blooms into a complex unravelling of loyalties, motives and what it is that makes us who we are.
