Given writer, Nick Gillespie's pedigree (e.g. Kill List, Sightseers) I was hopeful of an entertaining story.
The film starts with a "jolt"; five minutes in I found myself reaching for the DVD box to read the synopsis, in order to try and "work out" what the opening point of the film was (the box confirmed - I can't think of a time I've ever had to do this before in all my years of watching films, though).
What followed for the rest of the film somewhat reminded me of being a participant of a paint-balling contest, without the "excitement" of actually being there.
This is certainly a step backwards from previous efforts, perhaps, due to budget constraints?
Without spoiling the ending, I'd just say that whilst Kill List left you pondering things, this one just doesn't seem to mean anything at all; to me anyway.
Hopefully the next film will be better.