Marc Maron was prepared for the Season 3 finale to end up being the last episode of "Maron" ever and was pleasantly surprised when the IFC channel called him and said they had green-lit a 4th season. Maron then decided to make the season a representation of his long real-life period of drug addiction, by having the ordeals he'd been through earlier grafted onto his successful career and less-troubled personal life in the 2010's.