Alejandro Hernández Cárdenas is a Mexican dentist who claims to have invented a chemical formula that can rehydrate dried, decomposed corpses, restoring enough skin color and flexibility that faded tattoos and features become visible again. The film, produced by VICE's Motherboard, follows his method as a tool for identifying unclaimed or unidentifiable bodies, a persistent problem in Mexico's overwhelmed morgues. Cameras show the brew applied directly to desiccated remains, with skin visibly softening and taking on lifelike texture within the treatment. Hernández Cárdenas explains his process and its origins as the footage moves between his lab work and the practical stakes: bodies that might otherwise stay nameless getting a chance at identification and return to family. The material is graphic, showing corpses in various states of decay before and after treatment, and the film does not look away from the clinical detail of how the formula works on tissue that has been dead and dried for extended periods.