Stripped of aristocratic privilege, Count Alexander Rostov is sentenced to life imprisonment at the Metropol Hotel; contending with allies and foes alike, it's nine-year-old Nina and her unexpected friendship that changes his life.

The Count confronts his past when an old friend, Mishka, arrives at the hotel. He embarks on a passionate affair with Anna Urbanova. His friendship with Nina deepens, but their time together faces potential challenges.

As his old life crumbles, the Count receives devastating news.

The Count is forced to undertake a dangerous mission, one that will lead to a battle for his soul. Meanwhile, Anna's professional relationships are beset by political complications, as Mishka grows increasingly disenchanted with the Party.

Faced with a tragic accident involving a loved one, the Count makes a perilous choice to save them, jeopardizing his own life. As the hotel staff unites to shield him, Anna is compelled to confront her true emotions for the Count.

Russia stands on the brink of change in 1953, as someone close to the Count is granted a major opportunity. But when the return of an old friend makes the Count see clearly, he's confronted with a difficult choice about the future.

The Count and Anna devise an elaborate plan, with huge consequences should it fail. However, things quickly start to unravel. An inevitable showdown is set between the Count and an old enemy. Series finale.