New York... Newark... Pittsburgh... St. Louis. Vivian Palmer and Ross McBride are on the lam, trying to put daylight between themselves and pursuing coppers and a rival gang of jewel thieves. But Ross isn't a criminal; he's a G-Man posing as a crook to trick Vivian into leading him to her bosses. And Vivian isn't a dupe - she's wise to Ross's scheme.

Under Sam Wood's direction, Myrna Loy and Spencer Tracy scram through larceny, duplicity and love in a she-and-he adventure that critics favorably compared to The 39 Steps and It Happened One Night. One year after Whipsaw, Loy and Tracy again shared the marquee (along with Jean Harlow and William Powell) in Libeled Lady.

Myrna Loy plays the glamorous member of a trio of jewel thieves. G-Man Spencer Tracy goes undercover to join the gang when it transports its stolen jewels from Paris to New York. Loy falls in love with Tracy, has a change of heart, and quits the gang. But Tracy arrests her all the same when he recovers the jewels. The girl forgives Tracy when the latter is wounded in a climactic gun battle with the rest of the thieves. Why, oh why, is this thing called WHIPSAW'