With the study back in the hospital, Masters and Johnson recruit new participants on campus. But Johnson is shocked when her ex-husband George, whoโs crashing on her couch, wants to sign up. Mastersโ mother comes to visit, but her new take on life stirs up painful memories of his childhood. And Libbyโs attempt at playing matchmaker with Virginia and Ethan doesnโt go as smoothly as sheโd hoped.