This is a genuinely badly-made film - poorly written, poorly directed and poorly produced.
You do at least get fair warning of this from the very start, where the music crashes into clips of dialogue during the introduction, which is accompanied by typography somewhat amateurishly overlaying the visuals.
The plot is utterly implausible, and totally unconvincing. The characters are all unlikeable - although the acting is not completely awful by any means - just that the actors have nothing at all to work with.
The problem is not that this film is low budget - it's that is completely devoid of anything - depth, imagination, fun, scares - even jokes - and the central character is supposed to be a comedian.
Instead of developing the idea of a heckler haunting the protagonist, it looks as if they wanted to make a slasher film and just used the initially promising concept as a way into making something much more formulaic - with predictable results.