Tiffany, Charlie and Vernon are con artists looking to up the ante from their typical scams. They figure a good way of doing this is taking down Dean "The Dean" Stevens, a well-known cardsharp, in a rigged game. However, they first need enough money to enter a game with Stevens, so they decide to strike a deal with fellow crook Larry Jennings to scam a local gangster -- which turns out to be a bad idea.

Adrian Monk was once a rising star with the San Francisco Police Department, legendary for using unconventional means to solve the department's most baffling cases. But after the tragic (and still unsolved) murder of his wife Trudy, he developed an extreme case of obsessive-compulsive disorder. Now working as a private consultant, Monk continues to investigate cases in the most unconventional ways.

Veteran Secret Service agent Frank Horrigan is a man haunted by his failure to save President Kennedy while serving protection detail in Dallas. Thirty years later, a man calling himself "Booth" threatens the life of the current President, forcing Horrigan to come back to protection detail to confront the ghosts from his past.