Debora, the Astronaut, floats in space. After a turbulence, she awakens in a familiar but transfigured domestic environment. Through an experimental narration between documentary and fiction, MARIS B653 tells a real, intimate and familiar experience, in which the socio-cultural bond runs through the lives of three generations of mothers. 

Maris, which in the Friulian language means mothers, is also the name of the Polar Star, guide and reference for travellers. 653 are the kilometres that separate Rome, the city where Debora lived for many years, and her hometown where her mother and grandmother still live today.