A decade after a tragic ancestral ritual claimed her best friend's life, a young woman returns to her Argentinian mountain hometown, only to find the malevolent forces she thought she'd left behind are still hunting her.

Just before his concert, Santiago, a young conductor, receives tragic news that sends him on a journey of guilt, distortion, and terror. Reality shatters: time loops, a lurking monster, and the possible extinction of humanity engulf his world.