Watch Luna vieja for Free: How to Stream the Movie Online at 123Movies. . Elsa lives in the mountains of the Caribbean Island of Vieques, Puerto Rico. A visit from her teenage granddaughter, Mina, and her son-in-law, Alei, brings a sweet and bitter taste into her life. In order to protect her granddaughter, Elsa makes a decision that will change Mina’s life forever.