Maya's obsession with her career and performance continues to strain her health and relationship. She is seen working excessive overtime, pushing her body to its limits in an attempt to prove her worth, which causes further friction with her wife, Carina.
Recaps from The Review Geek and TV Fanatic highlighted the episode's dark tone, noting that it successfully used the Halloween theme to mirror the psychological trauma—or "demons"—haunting the characters. Jack's hallucinations and Maya's physical exhaustion were particularly cited as significant developments in their ongoing Season 6 storylines. Station 19 - Season 6 Episode 4 "Demons" Recap & Review
Travis's political campaign for mayor takes center stage as he attempts to navigate the complexities of public life while maintaining his duties at the station. Critical Reception
Back at the station, the team hosts a trick-or-treating event for neighborhood children. However, the lighthearted atmosphere is frequently interrupted by a prank war that breaks out between the crew members, providing brief moments of levity against the heavier themes of the episode.