Whipsaw

Ed Dexter and Harry Ames are a jewel thief team. Doc Evans and Steve Arnold lead a rival team. They threaten Ed and Harry over a valuable target. Ed and Harry turn them in with an anonymous call to the cops. Ed and Harry manage to steal the jewels while their rivals are in custody. The cops know that Vivian Palmer (Myrna Loy) is connected to the thieves. Agent Ross McBride (Spencer Tracy) goes undercover as a crook named Danny Ackerman and makes contact with Vivian.

Vivian is too obvious with her disbelief of Danny right from the start. She should hide it a lot better than that. Also I don't buy their romance. That's the biggest issue. It feels forced. The whole story feels a bit forced. I do love Tracy and Loy as individual performers. In another movie, they may be a good pairing.