Molly's unstable employment history comes back to haunt her when she applies for a loan for the down payment on her apartment. A few rejections later, she reluctantly takes her mother's advice and asks Arthur Feldman to lend her the $7,000 she needs. After a brief encounter with her chatty new neighbors, Ron and Ramona Luchesse, Molly meets her ex-husband, Fred, for dinner and lets him in on her little secret.

Molly invites Florence over for breakfast and a talk, but doesn't feel like doing much of either. Later, while browsing in the pregnancy and childbirth section of a bookstore, she's surprised to find Moss Goodman assembling a pregnancy book display and makes a date with him for dinner. That night, on their way to a police awards banquet, Molly breaks the news of her pregnancy to Hawthorne, who doesn't know quite how to react when he learns he may not be the father.

Molly may be in trouble at the office when she incurs the wrath of her boss, Sara. Later, over dinner and a game of ""Twist of Fate,"" Molly learns more about her new neighbors, Ron and Ramona, and winds up with a bag full of maternity clothes. Then, a nostalgic visit with Fred ends with a surprising gift for Molly.

Scrambling for the down payment right down to the last minute, Molly finally settles on her apartment. At the office, Molly's boss, Sara, is agitated and her assistant, Brice, seems to know more than he's telling. At day's end, Molly and Ramona bump into Fred on their way out to dinner. Fred's got the money he promised Molly, but finds out he's too late...in more ways than one.

Molly invites Florence and Arthur over for Thanksgiving dinner and, at long last, to meet Nate, but Florence arrives feeling a bit ""under the weather"" and immediately retires to the bedroom. When Nate arrives, Molly is disappointed to see that he is accompanied by his partner, Uribe. What, was supposed to be an intimate family dinner turns to chaos when several other unexpected guests arrive and Molly's oven chooses this night to malfunction.

At work Molly discovers she has not been credited as the author of her book. Florence and Arthur go to Molly's apartment to deliver an engagement present, with unexpected results. Molly and Ron, her neighbor, discuss childbearing with another couple in a cappuccino cafe. Back at Ron and Ramona's apartment, Fred is waiting to give Molly a baby present.

Molly and Florence go to Ramona's beauty salon to get ready for a night at the opera. Later, in Molly's apartment, her fiance gives her a wedding ring. That evening, Molly grows anxious when her fiance does not pick her up in time for the opera. The eventual knock at Molly's door brings bad news.

While friends and family are gathering at Ron and Ramona's apartment for Molly's baby shower, Molly goes into labor. Only one person, having seen Molly on the street hurriedly making her way to the hospital, is present for the birth.

Davey and his son Jimmy disagree about their work styles, with Jimmy looking for change and Davey hanging on to tradition. Molly, home from the hospital, spends the first few days alone with her baby. Arthur and Florence drop by Molly's apartment on their way to the Rainbow Room, leaving Molly to ponder the increasing demands of motherhood.

Molly is caught in the middle of her feuding neighbors, Ron and Ramona, who have separated but for economic reasons continue to share an apartment. Florence and Arthur stop by Molly's apartment to check on Fred, who is trying to conduct business over the phone while babysitting. Molly returns home to find Davey depressed, Florence and Arthur about to depart on a trip to an undisclosed location and Fred musing about his blossoming music career ... in Los Angeles.

Florence and Arthur have some surprising news for Molly about their relationship. Later that day, as Molly takes her baby for a stroll through the park, they unexpectedly run into an old, familiar friend, who stirs up old feelings. After this encounter, Molly strikes up a conversation with a mysterious woman, Vanise, who makes some predictions about the baby and leaves Molly a little disconcerted.

Molly celebrates her 40th birthday with her best friend, Nina. On her way back home, Molly unexpectedly meets Nick Donatello, the garbage man, who reveals the true nature of their ""chance"" meetings over the years. Ramona and a new date visit Molly's apartment to wish her a happy birthday and run into Ron, who was babysitting. Florence, away with Arthur, checks in with Molly but forgets her birthday. Fred comes over to give Molly a birthday present and say good-bye.