The book follows a single 20 or 30 something (depending who he's talking to), Daniel, through his mundane daily life. He suffers from massive, compulsive OCD. His OCD keeps him in a world that is a tapestry of rules, regulations and ridiculousness. He can't step off curbs, he's a pathological liar and he obviously can't hold a job. He holds long conversations in his mind and has truths that are the truth to only himself.
This book is really well written, and it's funny. Even though the entire book pretty much takes place inside Daniel's mind, it is not boring or slow moving. There's not much dialogue, but with a brain like Daniel's, not much is needed. This is one of those stories that's weird and you have to turn the page out of pure curiosity.
The book also has a beautiful twist that redeems it completely. In fact, the last 10 pages made it for me. For that, I give it 3 stars.