There is just one week until Kate Mercer's 45th wedding anniversary and the planning for the party is going well. But then a letter arrives for her husband. The body of his first love has been discovered, frozen and preserved in the icy glaciers of the Swiss Alps. By the time the party is upon them, five days later, there may not be a marriage left to celebrate.

Challenges of impending parenthood turn the lives of five couples upside down. Two celebrities are unprepared for the surprise demands of pregnancy; hormones wreak havoc on a baby-crazy author, while her husband tries not to be outdone by his father, who's expecting twins with his young trophy wife; a photographer's husband isn't sure about his wife's adoption plans; a one-time hook-up results in a surprise pregnancy for rival food-truck owners.