Legend says that long ago, nature thrived in harmony around the lake, until evil arrived. Men, blinded by dark desires, brought fear, hate, and death. Fishermen call it La Miringua, the one that drags you in the lake for your sins.
The story revolves around a group of people who gather in a stately mansion, the scene of a massacre from the past, to perform the ritual of the 'Red Book'. With the help of spirits, they try to reconnect with their deceased loved ones.
In the depths of Patagonia, a hunting guide stumbles upon a shocking crime involving his niece, forcing him to confront the haunting secrets of Argentina's dark years in the tumultuous 80's in his pursue of justice.