The story has potential. You can tell the crew put a lot of effort into trying to make this the best movie they could. It's shot reasonably well and the editing is decent.
The plot holes and errors really break any immersion you can gain. For example, the killer practically confesses in his preliminary interrogation. And the whole time you cannot even decipher the killer's motivation. He is literally killing because... he can?
The acting is atrocious. You grow to hate antagonist because he is so bad at delivering his lines.
When I consider the writing I at first only had criticisms about the protagonist - the "reformed" serial killer. At first I thought it was just really lazy writing, but the more I think about it, the more I realize that the subtly with which his written shows quite a bit of talent. Serial killers are often known for disguising themselves with charm and being able to manipulate others. This aspect of his character was never explicitly said. It wasn't even hinted at. It's actually a really accurate portrait of a serial killer. No one ever suspected Gacy or Bundy was a murderer until they were being murdered.
For a low budget movie, it does what it set out to do, tell a unique story.
