Oh dear, how did I mis-judge this so badly?
I should have been warned off by the absence of mainstream reviews but as we quite like a good murder mystery and this was available on Prime, and the covid-19 lockdown has gone on for a very, very long time now - what was there to lose?
It looks like an entry to a film school where the director has persuaded his friends to act - and I say this having been camera operator for just such an enterprise in the past. The premise of film is fine and the theatre style shooting probably reflects the lack of a budget, but the low production value and the, shall I put it politely, variable quality of the acting (from very clichéd characters) results in a stilted and poorly directed film that starts to drag before more twists unfold. It was strange the things that caught my attention - the visual quality of the food presented during the various 'courses' looked as if it had been thrown together by the crew, plonked on a plate and then lit by whatever flat lighting happened to be in the room - so many wasted opportunities for relatively little additional budget to make these key moments actually look like a feature film than a student film.
If you enjoy low to zero budget films and are prepared to give something a little different a whirl, then if you're getting it 'free' with prime there's no real downside other than the time spent. If you were paying full price or even (remember those days?) paying for a ticket at the cinema, then I think you may be left wanting a refund.
There are much better murder mysteries out there, your life won't miss this one.