Coherence: 10/10
I think this was my third time re-watching. Probably my favorite low-budget film of all time. Rather than give actors a script, the director gave them cue cards with 'goals for the day' and just let them act out the scene in whatever way came naturally. One of the actors was also the writer of the script and so was able to sometimes steer scenes in the direction they wanted things to go in. Not bad for a movie shot in 5 days on a $50,000 budget, $8,000 of which was spent on a wig they had to buy because they had to do some reshoots and the actor cut her hair.
I haven't talked at all about the plot because it is really just something you need to watch.