Ariadne Foster, a forensic analyst, is in quarantine at home along with her boyfriend, Mark. As they adjust to this new order of reality, a case of two unsolved murders comes back to the spotlight after eighteen years. Intrigued by the story, they decide to initiate their own research. As the tangled yarn of mystery unrolls, a new seemingly irrelevant puzzle begins to occupy Ariadne's mind. A vague memory from her childhood, the disappearance of a boy. What was originally an excuse to escape reality, has now become an investigative journey for the young couple. Is, however, a fresh perspective enough to join scattered pieces of old evidence together? As the quest goes on, they realize an unexpected ally is on their side.