On prom night ten years ago, a group of drunken friends go too far when trying to scare a couple of their fellow classmates. After accidentally killing one of them, they decide they have to kill the other one in order to cover up the crime and protect themselves and their futures. Now, ten years later, as they start coming together for their high school reunion, each member of the group is being picked off one by one by a ghostly killer as some sort of revenge from beyond the grave.

Antonio owes the Robaldo family a hundred G's, Gray wants revenge on the street gang who mugged him, Jimmy's escaped from prison, and his brother/accomplice David has many serious mental conditions. Detective Brickley is hot on their trail willing to stop them with any means necessary, while a pair of rogue psychiatrists track them to discover the roots of David's condition. It isn't long before the paths of these characters cross with violent and tragic consequences. The result is a shocking and disturbing portrait of human nature at its worst that can only be summed up in one word: Malevolence.

The off-kilter, unscripted comic vision of Larry David, who plays himself in a parallel universe in which he can't seem to do anything right, and, by his standards, neither can anyone else.