Christabel "Christy" Sloane is a
legal secretary in
San Francisco who desires finer things but is in desperate financial straits. She laments to her coworker Patsy that she needs to marry a
millionaire. Christy's boss sends her to
Los Angeles to inform Peter Ulysses Lockwood of an inheritance of 28 million
pesos ($2 million) that a deceased uncle has bequeathed him and to obtain the necessary legal documents. Patsy sees the assignment as Christy's opportunity and counsels her to romance Peter before informing him of his good fortune. Peter is the "Sunshine Man," the host of a radio program on which he delivers saccharine homilies and moral tales about "spreading the sunshine around", often linked to the products of his sponsors. Christy arrives on Peter's wedding day as he is dressing in preparation to marry heiress June Chandler. When Christy meets Peter, she is attracted to him and faints in his arms. Peter, half-dressed and baffled by Christy's appearance, carries her to his bed. Christy awakens and acts seductively, but Peter believes that she is mentally unstable. His friend and
best man, psychiatrist Roland "Doc" Cook, June's former boyfriend, enters and assumes that Peter is having one last fling before his marriage. While Christy is explaining the purpose of her visit from his bathroom, Peter is in the living room trying to explain the truth to Doc and does not hear her. Christy follows Peter and Doc to the Chandler mansion, where the wedding is to take place. Doc refuses to participate in the wedding, and Christy inadvertently gives the impression that she is Peter's girlfriend whom he has abandoned for June. Christy's erratic behavior and insistence that Peter has inherited a fortune convince everyone that she is unbalanced. The wedding is postponed until Peter can clear himself by driving Christy to Doc's clinic in
La Jolla to confirm her instability. During the foggy ride, Peter drives off the highway onto a beach, where he loses the car keys. He and Christy are found by a group of Mexican railroad workers, who mistake them for newlyweds and welcome them into their
crew car. After a night of dancing and drinking with the Mexicans, Peter and Christy kiss in the moonlight. In the morning, Peter apologizes to Christy for making advances as the car is being towed to La Jolla. Christy explains everything to Doc and confirms the truth with her boss. Hoping to regain June for himself and match Peter with Christy, Doc conspires with her to fake her false illness for 24 hours while he tricks Peter into letting her down gently to cure her. Doc places Peter in his room and registers Christy at the same hotel. He summons June, who finds Peter and Christy in a romantic moment. Doc persuades June that Peter was just following his recommended therapy. Doc and Christy drink in the hotel bar and then approach Peter and June to share their bottle of tequila. After several drinks, Peter, still believing that he is humoring Christy, pledges his entire inheritance to charity, including Doc's clinic. The next morning, a hung-over Peter is awakened by the press and a stream of well-wishers, all congratulating him on his generosity. Upon learning that he really did inherit $2 million and has donated it all, Peter is dumbfounded and believes that he owes Christy an apology for thinking that she was crazy. June angrily warns him not to see Christy again, but he knocks on Christy's door, only to see her leaving. Peter chases her to a train station, where she hides in the restroom. Peter declares his love for her and forces her to emerge by creating smoke from burning newspapers. They escape the pursuing police and reporters by jumping aboard a train carrying their Mexican friends. ==Cast==