Helen, a writer, and Madeline, an actress, have hated each other for years. Madeline is married to Ernest, who was once Helen's fiance. After she recovers from a mental breakdown, Helen vows revenge by stealing back Ernest and plotting to kill Madeline. Both rivals have secretly drunk a miracle cure for aging; they accidentally discover, when each tries to eliminate the other, that they have become immortal and that "life" will never be the same again.

Wealthy, brilliant, and meticulous Ted Crawford, a structural engineer in Los Angeles, shoots his wife and entraps her lover. He signs a confession; at the arraignment, he asserts his rights to represent himself and asks the court to move immediately to trial. The prosecutor is Willy Beachum, a hotshot who's soon to join a fancy civil-law firm, told by everyone it's an open and shut case. Crawford sees Beachum's weakness, the hairline fracture of his character: Willy's a winner. The engineer...