In 1999, Dan's in grade eleven when he transfers to Saint Lawrence’s, an all-boys catholic school. Dan causes a panic on his first day when he chooses a seat at Trin's desk, a senior who mysteriously vanished at the lake behind the school a year prior. No one dares to sit at that desk, and no one dares throw it away. He gets to know Nine, George, and Cha-em. As the four of them grow closer, they begin to look into Trin's disappearance while helping Dan evade the shadow that's plaguing him.