Within the Dark Blue Water

Haeyun, struggling to survive day by day under a mountain of debt from his mother's hospital bills. One day, while endlessly running through a pitch-black tunnel with no end in sight, Kim Tae-min, whom he knew from his band days, suddenly appears. Tae-min approaches him, saying he's started a small entertainment agency and offers Haeyun a 20 million won signing bonus to become a singer. The condition is to provide sexual favors to an executive of a large corporation. Desperate for money, Haeyun has no choice but to accept the condition. At the home of Han Ki-woo, the managing director of the corporation where he goes to provide the sexual favor, Haeyun runs into Han Ji-yul, his high school...