Overview:

Andrea (4) and Marina (6) become fast friends while playing on the rooftops of their adjacent buildings during the pandemic in Mexico City. They cling to their precious friendship during the stress and loneliness of confinement. When Marina's parents separate suddenly, however, Marina is heartbroken to have to move away without being able to say goodbye to Andrea, who is equally heartsick until she unexpectedly finds a remnant of their friendship.