L’inquilino del terzo piano sul retro by Jerome K. Jerome

In a boarding house inhabited by petty-minded people, on the third Friday of the month a mysterious traveller arrives, speaking of a king who was once born in a stable and who inspires everyone to change their ways through his smile and his calm demeanour.
The humour of Jerome Klapka Jerome, the well-known author of  Three Men in a Boat  and Three Men on the Bummel, blends with religious themes with sublime delicacy.

Twelve characters: six men and six women.
Full Italian PDF available HERE