You would thing upgrade would be related to only machines. It is, but a machine used as t tool to fish out the villains and take revenge on them. It is an unusual story of a technophobe. He is unable to save his better half from the clutches of death. He finds himself helpless and devastated after her demise. He too suffers paralysis due to the terrible encounter. He takes a vow to avenge her death, whichever way he can. But there is a catch. He abhors technology but as luck would have it, the route to the revenge lies in a chip called Stem. It is a chip under experiment. The film focuses on how the technology hater turns technology into a vendetta tool. Not only does he trace out the killers, he gives them a tough tooth and nail fight, eventually putting them to a fatal finale. The action-packed, suspense spewing, vendetta tale is a unique mix of tragedy, thrill, violence, and ferociousness. Watch the lovelorn husband conquer all the obstacles to pay the tribute to his lady love by bringing her tormentors to book. An unforgettable mingle of passion and peril.