The Moby Prince disaster was one of the worst environmental catastrophes in Italian history and had four times the casualties of the Costa Concordia. Now, more than 20 years later, this maritime disaster remains an enigma. On April 10, 1991, around midnight, passenger ferry Moby Prince collided with the oil tanker Agip Abruzzo, causing the death of 140 people. This investigation, starting with the conflicting radio transmissions on the night of the disaster, gives a gripping reconstruction of the tragic events of that night and narrates the discoveries that have since come to light.