I found an actually summary of the book:
At the finale of his critically acclaimed first memoir, In Search of Captain Zero, Allan Weisbecker has found his paradise at the end of the road in outback Central America (Pavones, Costa Rica), and is working of the screen adaptation of the book, commissioned by Sean Penn and a major Hollywood studio.
Can’t You Get Along With Anyone? is the story of Weisbecker’s paradise, its underbelly, his fall from grace with the powers that be in Hollywood and the publishing business, plus the near loss of his life due to the writing of the book; he exposes a double murderer and, more dangerously, “the love of his life” as a sociopath.
Interwoven through the various catastrophes that test him on every level, are Weisbecker’s reflections on the process of writing the book itself and the nature of nonfiction. Weathering his “after-writing throes,” “writer’s queasy gut,” and “hemorrhaging forehead” (from staring at the blank page), Weisbecker maintains his sanity and perspective through his wry, sometimes wildly funny take on his own fears and flaws, and through retreat into the purity of the simple act of riding a wave.