Blue and Vince are just average teenage boys, going to school, hanging out with friends at the mall, playing games at the arcade. It's a Saturday like every other Saturday until Blue sniffs a strange scent unlike anything he's ever smelled before. Coming from a girl standing nearby, it's a scent that makes him sick. And then the girl falls dead.

Blue's father tries to convince him that he has a gift. He can warn people before they die. He can possibly save them. But in the real world, Blue is a freak, someone to be afraid of. Somehow, he knows when people are going to die.

Rejected by their friends and classmates, Blue finds solace with the one friend that refuses to abandon him: Vince. Even with Vince's support, Blue struggles to come to terms with his gift. After meeting a man that has the same ability, Blue is convinced that he can use his ability to save lives. But his desire to help people becomes a nightmare as Blue vanishes into a sinister world of lies and betrayal. Desperate to find Blue, Vince devotes his life searching for him. Drawn into a deadly game of cat and mouse, Vince is determined to save Blue even if it costs him his life.

Sour, an erotic psychological thriller, contains graphic violent imagery and intense sexual situations. It is intended for mature audiences only.