"Astronaut Debora floats in space. After cosmic turbulence, she awakens in an unfamiliar and transfigured domestic environment. Here she finds two alien women, Mother and Grandmother. Intrigued, she approaches them in search of contact. The two aliens begin a telepathic narrative about their own lives, sexuality and motherhood. Then astronaut Debora departs to continue her journey. Finally aware that despite their profound differences, there is a bond that unites them. A bond that restores her sense of belonging to the other mothers in her family. Between documentary and fiction, Debora's story represents that of every woman who comes to terms with her family's values and taboos. Maris, which in the Friulian language means mothers, is also the name to represent the North Star, the travelers' guide and reference. ""Maris B653"" represents the North Star that can guide each one on a path of awareness of one's identity.""