Set in 1960s New York, Kilgallen follows journalist Dorothy Kilgallen as she investigates the assassination of President John F. Kennedy. Already one of the most influential media figures of her era, Kilgallen becomes convinced that critical facts surrounding the case are being concealed. As her reporting intensifies, she navigates the political power structures, celebrity circles, and growing personal risks tied to her pursuit of the story. Dorothy Kilgallen died under suspicious circumstances in 1965, and the case remains unresolved.

The musical centers on the real-life figure known for her nationally syndicated columns, television appearances, and high-profile reporting. Blending historical drama with true-crime storytelling, the production examines Kilgallen’s investigation into the Kennedy assassination and the broader media culture of mid-century America.