Book publisher Bob McKellaway is engaged to beautiful young Tiffany Richards. Everyone thinks she's perfect for him. Everyone except Bob's ex-wife Mary (Debbie Reynolds in a sparkling performance). She may know someone else who'd be even better for Bob: herself. This delightful, sophisticated marital romp based on the stage hit by Jean Kerr (Please Don't Eat the Daisies) tosses in a blizzard, an IRS audit and a dashing movie star (Michael Rennie) with an eye for Mary to keep the comedy humming along. Mary, Mary is all about laughs. And all about love -- finding it, losing it and finding it again.