The jokes in 3C (some groaners, some grotesque) aren't funny enough to sustain it as a comedy. Meanwhile, the perversities in which it traffics suggest that it wants to be taken seriously. What results is a muddle.
It also leaves very little for the actors, or for director Jackson Gay, to work with, even though everyone works hard. Too hard. Poor Jake Silbermann, who plays the male roommate, makes his entrance in the nude and spends much of the rest of the play being hit in the face.