Marisol and Gabi Morales are detainees of the United States government, caught crossing the U.S. border to escape the gang violence in their country after their brother was murdered. When Marisol learns that they are going to be sent home, they flee, and catch a ride with Indranie Patel. Indranie has a proposal for Marisol: become a Grief Keeper, someone who will take another's grief into their body. It's a dangerous experimental study, but if Marisol agrees she and Gabi will be allowed to stay in the United States. When Marisol meets Rey, the wealthy daughter of a D.C. Senator, and the girl she's helping to heal, Marisol doesn't expect the connection from their shared grief to erupt into a powerful love.