An unidentifiable virus breaks out at a college, forcing professor Anya Davis to conduct her seminar online. After a tragedy happens in the class, a battle of ethics begins between Anya and the institution.

When photographers Erin and Patrick are brought aboard the ship with their young son Lukas, they unleash a series of events that entwines their family with the ship’s dark past. As the terror unfolds around them they begin to realise there is more to this sumptuous ocean liner than meets the eye: its remarkable legacy masking violent secrets.