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 was split in two. Fifteen years later, White, now a grown man, returns to Thailand. One day, seemingly out of the blue, White feels a wave of agony wash over him and faints. He regains consciousness in 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 discovers that Black is part of a biker 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 the feelings of others – begins to suspect something. Sean starts to sense that there is something different about his friend, and he won’t like what he discovers.