When Sue wears an embarrassing costume to a Halloween party, she turns to Mike for advice; Frankie takes Brick's social-skills group trick-or-treating; Axl and his friends plan a prank.
Johnny sets out to complete his father’s work. Lana leads the charge to finally shut down Briarcliff.
The team examines multiple motives when a therapist married to a Navy commander is murdered; the team talks about Tony's dating habits, and Halloween costumes.