On Derby day at Epsom Downs, Lord Charles Sheridan is ready to photograph the race with his new camera. The race is marred, however, by the death of a jockey. While her husband investigates the death, Kate Sheridan retreats to the country to interview actress Lillie Langtry for a magazine article. As Kate plunges into Langtry's past, Charles's investigation heads toward Langtry as well.
Lord Charles Sheridan has launched an investigation into a jockey's recent (and mysterious) death-while his wife, Kate, puzzles over the long-ago theft of an actress's jewels. But soon the Sheridans can't help wondering if the two strange events are, somehow, connected.