Black and White are twins with a strong bond. After their parents separated, however, White’s father took him out of the country, and so their family split in two. Fifteen years later, White, now an adult, returns to Thailand. One day, seemingly out of nowhere, White feels an excruciating pain inside and faints. He regains consciousness in the hospital, but is unable to determine the cause. He receives a phone call from a childhood friend, Tod. Tod tells him that Black is in a coma following a vicious attack, and White discovers that Black is part of a motorcycle gang. Unable to bear the harm done to his brother, and suspecting it was one of Black’s close friends—Sean, Gram, or Yok—White disguises himself as Black to find the traitor. But White doesn’t know his brother as well as he thought he did. Sean, one of Black’s friends—ruthless and indifferent to others’ feelings—begins to suspect something. Sean starts to sense that there’s something different about his friend, and he won’t like what he discovers.