Paloma Marquez is traveling to Mexico City, birthplace of her deceased father. She's hoping that spending time in Mexico will help her unlock memories of the too-brief time they spent together. While in Mexico, Paloma meets Lizzie and Gael. The siblings want her to help them find a valuable ring that once belonged to beloved Mexican artist Frida Kahlo. Finding the ring means a big reward -- and the thanks of all Mexico. But the brother and sister have a secret. Do they really want to return the ring, or are they after something else entirely?