This is Jack - a guy that met Satan and tricked him into promising to never take his soul He wasn't good enough for paradise either, so when he died he ended up in purgatory Death has now brought him back to life to deal with Satan's Halloween Shenanigans, in exchange for a solution to his Eternal Torment
Map of the first level for the game, not final, but this is the direction I am moving in. You can play it in the latest build available here on indie.db