Thomas and Susan have married without letting their families know. They intend to inform both parties, but there's a surprise in store.

Thomas and Susan are temporarily living with Aunt Dorothy, but need to find a permanent home. Their families take it upon themselves to determine where the newlyweds should stay.

Susan and Thomas move into Dorothy's basement apartment, but have no furniture to speak of, their respective families take care of that.

While Susan bakes a cake, Thomas has gone out in search of a gift for Dad. Unfortunately for the couple, it soon becomes apparent that both of their fathers share the same birthday.

Thomas ends up in bed with flu, prompting Annie to fuss over him. Later, when Susan returns home sick, Matilda arrives to look after her. Peace turns into chaos when Edward and William arrive after work for a homecooked meal.

Finally settled in, the young couple throw a housewarming party, inviting their friends and parents. However, Susan isn't amused to learn that Thomas has invited his ex and Susan's former roommate, Phyllis.