Sofía Ponte is a successful businesswoman, heading an important cosmetics firm. She does not trust her sons and heirs, and organizes a plot to see which of them are trustworthy. Her granddaughter Amparo loses her parents in a plane accident, and begins a romance with Félix, the son of the pilot. Félix takes a job at the firm, and secretly investigates the plane crash, suspecting that it was not an accident.