On August 26, 2010, in Avetrana, a small town on the edge of the holiday destination called Salento, a young girl leaves home never to return. Her name is Sarah Scazzi, she is 15. The whole town is in turmoil, especially her cousin Sabrina, a beautician who is waiting for her, in her house in Via Deledda, to go to the beach later that afternoon. But while everyone is looking for her, Sarah has disappeared into the void, buried at the bottom of a well where she will be found forty-two days after her disappearance, in what will become a real life horror show with intimate secrets and unspoken grudges.