Who is Viktor Sams? Imogene and Sunil pursue a lead in Malta, while Rufus teams up with Leila and Teddy.

Imogene is betrayed by someone close to her as more victims fall prey to Viktor Sams.

Imogene walks in Rufus's shoes, revisiting the investigation into her mother’s murder eighteen years ago.

Blackout. Three dead bodies. Everyone's terrified. The secrets unravel like Christmas presents. And Imogene confronts her mother's killer.

Viktor Sams takes control of the Varuna and forces the guests to bid against each other to survive. Will Imogene and her friends unmask him before time runs out?