I Am Joe (2016) is the trippy tale of a quantum physics professor at NYU played by Laurant Malaquais who is drugged by a Jewish cult that wants him to return home. After this incident, he finds himself torn by his two lives - his current one and his former life as a mystical criminal. His violent previous personality emerges and disrupts his current, ordered life.
The movie isn't about Joe, though! There is a close-up shot of some man buns on actor Joel Slabo when he is masturbating. Unfortunately, we don't get to see much more because he is interrupted in the act by the sound of the doorbell. Maybe next time we'll get to see if he's as firm as his buns.