I really don't know why this movie got the good reviews it did. It's was boring, with a sloppy script... over using the word 'Brah' between two friends. The monologues about the Keto diet of the early caveman really hit home the poor script for me. The ending was contrived and didn't make sense.. so really a disappointment from two good actors.
Anthony Mackie and Jamie Dornan can do much better but need the right material to work from!