In the middle of rush hour traffic in Lima, a young student refuses to give up his seat to an elderly woman, sparking unexpected chaos among the passengers.
'M' is an old woman who lives adrift: a lonely shadow that crosses her own geography every day. She spends her days dreaming about her past, until one day she finds something very similar to her - an ant. M decides to share her world haunted by nostalgic memories and a dark presence, until the day...
Miguel, scarred by years of bullying, is forced onto a crossroads with himself when the arrival of a new student inadvertently brings his turmoil to light.