Delia Ephron had struggled through several years of heartbreak. She'd lost her sister, Nora, and then her husband, Jerry, both to cancer. Several months after Jerry's death, she decided to make one small change in her life-she shut down his landline, which crashed her internet. She ended up in Verizon hell. She channeled her grief the best way she knew: by writing a New York Times op-ed. The piece caught the attention of Peter, a Bay Area psychiatrist,...