Frank Capra directs Spender Tracy and Katharine Hepburn in this classic satirical comedy. Tracy plays Grant Matthews, a prospective candidate for the Republican presidential nomination, backed by his mistress, newspaper mogul Kay Thorndyke (Angela Lansbury). In order to present a more wholesome image, Matthews convinces his estranged wife Mary (Hepburn) to pose as his devoted spouse. Mary agrees because she thinks he might make a good president, but when Matthews corrupts his principles for votes, Mary realises she has made a mistake. Only when Matthews publicly admits his dishonesty does he prove himself worthy of Mary's respect - and her love.