The benefit of coming late to the online graphic novel Freak Angels, written by Warren Ellis and illustrated by Paul Duffield, is that you can consume all of the first nine riveting, violent, and very sexy episodes in one sitting. And once you’re hooked, that’s exactly what you’ll want to do. The profanity-laden weekly comic feels like Heroes, if David Mamet took over writing the show’s dialogue. But if you do go on a Freak Angels bender, know this: After you’ve whizzed through the first nine installments, you’ll have to wait a week between episodes just like the rest of us.