After Robert takes a second job selling home security systems, he reveals he's been asked to join the security firm full-time and is mulling over retiring from the police force early. While Marie is overjoyed, Amy questions if this is really what Robert wants or if he's only retiring early to make his mother happy. The disagreement about his future leads to a tense birthday party for Robert.

Amy's parents put Robert on the defensive when they point out his strange habit of touching food to his chin before he eats it. When Amy confides in Debra, who tells her that Robert's strange behavior could be psychological, she devises a plan to break him of his chin habit for good.