A Man on the Inside featured a new case for Ted Danson's character Charles to solve - but who was the culprit? Based on Maite Alberdi's 2020 documentary, The Mole Agent, A Man on the Inside is a comedy series that follows recently widowed retiree Charles, who originally infiltrated a senior living facility to help solve a case for private investigator Julie (Lilah Richcreek Estrada). His mission in season 1 was to find out who had been stealing from the retirement community, but Charles started to feel at home at Pacific View very quickly.