Drawing comparisons to Saw meets The Wrong Turn, What the Waters Left Behind: Scars begins when after a packed gig in the middle of nowhere and a wild night out, an indie rock band's RV gets stuck in the middle of nowhere. The situation is tense: there is trouble within the band and member Billy Bob (Matías Desiderio, Palermo Hollywood ) lives up to his reputation as the band's black sheep when he first sleeps with a groupie and then flees. The remaining band members Jane (Clara Kovacic, The 100 Candles Game ) and Mark (Juan Pablo Bishel), as well as manager Javi (Agustin Olcese, The Red Book Ritual ) and companion Sophie (Eugenia Rigón, Abracadabra ).) go in search of the ruins of Epecuén. They soon realize not only that they are not alone, but that they are also in acute danger. And that you should also be careful with groupies.