Lucia Medina, a Catholic nun, returns to her home to confront the past. It is darker than she thought: the high unemployment has resulted in crime and drug trafficking. She decides to address the scourges even though her moral convictions will clash head-on with her acts, causing many personal dilemmas. The situation becomes even more complicated when she discovers that her nephew Rafa has starting to traffic, and that Bruno - her high school crush - is one of the local bosses.