What happened to Bárbara Molina? Her body was never found and no suspect was ever caught. A phone call disrupts the destiny of several people: a policeman on the verge of retirement, a mother who has lost all hope of finding her disappeared daughter, and a girl who betrayed her best friend. 'Palabras envenenadas' is the tale of a fast-paced day, lived against the clock by three people close to Bárbara Molina, who disappeared when she was fifteen years old. Four years later, new clues appear to solve the enigma. A story of lies, secrets and false appearances that opens an old wound of unquestionable myths. A brave denunciation of childhood sex abuse, its devastating consequences, and its invisibility in this sanctimonious world.