Kim lived a wild and rootless youth, entirely devoid of meaning, until he discovered his passion: deep-sea diving.
In his exploration of the stunning, untouched paradise beneath the surface of the water he found freedom, solace and a means of escape from his past.
But those were the old days....
until his best friend offers him a chance to make some money on the side as a private diving instructor on an excursion to the spectacular reefs in the Southern Red Sea - It's an opportunity he can't refuse.
Then the two men find out that the dive is being run by a gangster who lives a life of drugs and violence, and while Garland tries to ensure that the guests are diving safely, Kim finds himself increasingly drawn back to the dark side of the boat's temptations.