Mark Bastion, formally the Demon Barbas, has been living a pretty good life ever since his escape from Hell a few hundred years back. He's now running a shady exorcism business with his spunky assistant, making a good living scamming the common folk. But life's never that easy, especially after a fake exorcism gone wrong, leading Mark stuck a job that he cannot decline. Now, with both Heaven and Hell after him, he has to use the powers that he has neglected just to say alive. That, and with a lot of help from friends both old and new.