Alkyona Sanctuary, a secluded area two and a half kilometers long nestled in a gorge crossed by one of the cleanest rivers on the planet, also known as the "Billionaires' Mile," offers a luxurious fishing and relaxation experience to its extremely wealthy clients.

It now offers a second chance to the fishing instructor Jack, a return to normality after recent painful losses. He is assigned a famous singer. His only duty is to bait her line, carry the equipment, and guide her.

But when a human scream pierces the night, Jack realizes that the idyllic sanctuary may just be the façade of a much darker enterprise.