Three women live together: Maria is a scientist, Lia is a kindergarten art teacher, Raquel is an android with AI. They need to organize the traditional Saint John's festival for Lia's school.

Julia and Sérgio set out in search of Rebeca, a missing cycling activist, moving through Brasília, a city marked by silence and unresolved histories. Their investigation leads them to forgotten tragedies, where ruins, memories, and unsettling presences begin to intertwine. Blurring the line between the real and the fantastic, Mapas unfolds as a journey through ghosts of the past that continue to echo in the present.