The problem here is Mr. Long's Adam, a twitchy knot of tics and self-pity. He invites our sympathy - especially when contrasted with the smarmy Aaron - but doesn't really deserve it.
Eggold's better with the darker, more emotional areas of the plot, capturing the intensity of bad decisions when they're motivated by desperation, and the sting of love that's no longer returned.
Somewhere, down the line, some young would-be filmmaker will stumble on to this film on Netflix, see how something like this could get financed, and will become inspired to make their own movie for all the wrong reasons.