Ethan has always been one of the good guys. . . and for years, nobody has appreciated this fact more than his wife, Zo. That is, until now. Jolted into activism by the 2016 election, Zo's transformed their home the headquarters for the local resistance, turning their comfortable decades-long marriage inside-out. Meanwhile, their boisterous daughter, Alex, grows more unruly by the day. Ethan's former business partner needs help in saving the media company they'd co-founded. Financial disaster looms. Enter a breezy, blue-haired millennial making her way through the gig economy. Suddenly Ethan faces a choice unlike any he's ever had to make. Unfolding over five tumultuous days in 2018, The Smash-Up wrestles shrewdly with some of the biggest questions of our time: What, exactly, does it mean to be a good guy? What will it take for men to break the "bro code"? How does the world respond when a woman demands more from her life? Can we ever understand another's experiences. . . and what are the consequences of failing to do so?