With a wish granted by a mysterious being, an angry and disillusioned man becomes godlike and is pursued by a persistent ordinary federal agent while killing evil people in his wake.

I am totally mystified.? Who is the protagonist, the angry man or the ordinary agent?? And what is the specific objective goal?? Towards what end, what destination is the story narrative driving? (Whether it gets there is another question) Who should the audience be rooting for and what should they be worried about?