On a stormy night in Rome, Anna arrives at her daughter Alice’s apartment with a devastating confession: their entire family history is built on a lie. Twenty years earlier, after a horrific accident that nearly cost Alice her leg, Anna claims she made a pact with a mysterious Stranger to save her. But the miracle came at a price. What she believed was a single desperate bargain has in fact unleashed a spiraling chain reaction — a domino effect of increasingly dark events that have haunted their lives ever since. Now, the Stranger has come to collect. And Anna is convinced that only Alice can break the spiral and set things right. But at what cost?