Yes, A Gentleman in Moscow by Amor Towles is a clean book.

In 1922 Moscow, Count Alexander Rostov is sentenced to house arrest in the Metropol hotel across from the Kremlin — and spends the next thirty years discovering how large a life can be lived inside one building. Amor Towles writes with wit and enormous warmth; the Count's friendships, especially with a small girl who knows the hotel's secrets, carry decades of Russian history without ever losing their lightness.