A Gentleman at Heart

Lucky Cullen discovers he owes Tony Miller $5,000 after betting under a false identity. Tony gives him 24 hours to settle the debt before more trouble erupts.

Lucky learns he has inherited a Fifth Avenue art gallery from his uncle, but Helen Mason informs them the business is deeply in debt and essentially worthless. The revelation sets up a costly new venture for Lucky.

Tony cancels Lucky's debt in exchange for control of the gallery. He then takes Helen out to dinner and begins teaching her about art, deepening his involvement with her.

Tony discovers Stewart Haines kissing Helen Mason, which strains his relationship with Helen. He responds by sending Stewart on a buying trip to Europe to handle acquisitions.

The struggling painter Genius pesters Lucky. To get rid of him, Lucky pays $10 for Genius's abstract paintings; Genius returns with more works, and a patron later buys his paintings.

Tony buys a Rembrandt from Claire Barrington for $20,000, only to have it exposed as a very good fake by the gallery's expert Appleby. After the confrontation with Claire and the forger Gigi, Tony retrieves his money.

Helen mentions a missing Velasquez painting, Two Children in the Court. Tony has Gigi paint a copy and presents it to Helen to sell at an auction at the gallery.

Government buyer Finchley enters the bidding. Tony orders Lucky to bid, but Helen stops him, and Finchley wins the painting for $84,000.

Stewart returns from his trip with Don Fernando and the genuine Velázquez painting. The real artwork's appearance increases stakes and tension.

In a turn of events, Lucky kidnaps Don Fernando, complicating Tony's plan to secure the true painting. The incident raises the stakes and urgency.

Tony buys the painting for $100,000 and plans to swap it with Gigi's forgery, hoping to outmaneuver the counterfeiters and authorities. The move hinges on convincing the authorities of the painting's authenticity.

The government expert dismisses the swapped painting as a bad copy, casting doubt on Tony's plan and delaying a final verdict. The gallery worries about the potential fallout and legal exposure.

Helen insists that additional experts be consulted. Gigi then provides an even better forgery, and the new experts are satisfied it is genuine.

To demonstrate his change of heart, Tony donates the Velázquez painting to the government. He hopes this will restore trust and show good faith.

Tony gives the gallery to Helen and Stewart and returns to the racetrack. Helen shows up at the track, forgives him, and Lucky returns Tony's counterfeit money of $100,000.