A moonlit walk ended in nightmare for Andrea Sposito when a stranger's hands emerged from the darkness. Her next memory is waking up tied to a table, under the total control of a stranger hidden behind a grinning mask. That sight was the beginning of an ordeal that ended seven days later when she was taken to a beach, buried alive in the sand and left for the sea to take care of. But the killer made one mistake that sunny morning: he left Andrea alive. Hidden secrets will begin to emerge. Each new clue will shift the balance upon which Andrea's life hangs, as she tries to help the police while dealing with the ghosts from that week, and the actions of a sadistic killer with only one goal in mind: to silence the only witness capable of bringing him to justice.