After an embezzling accountant leaves her penniless, ex-model Maddie Hayes decides to sell the few failing businesses she still owns, among them a detective agency. But private eye David Addison wants to keeps his job, so he persuades a reluctant Maddie to form a partnership. Their first case gives them little to go on: Maddie gets a broken watch from a dying man.

Dave and Maddie face a difficult situation when they have to tell their client that the son he hired them to find is a notorious contract killer.

Maddie becomes infatuated with a radio talk-show host who has apparently been murdered while he was on the air.

Dave's older brother shows up unexpectedly, flashing a big roll of money and determined to impress a bemused Maddie, unaware that he's pursued by a drug dealer who wants his money back.

Ms. Dipesto finds a baby left in her apartment by a woman named Mary fleeing from the hit men who killed her husband, and Dave and Maddie quarrel over using the agency phones as a "Santa hot line."

Rona Barrett investigates the rumors about discord among the principals at the Blue Moon Detective agency.

Sam confronts Dave about Maddie, and tells him he's not good enough for her.

After a month of intimacy, Maddie begins to question just where this relationship with David is headed.

An angel from above visits Baby Hayes as he waits to be born and gives him the low down on his parents and their relationship.