In Aurora Teagarden Mysteries: How to Con A Con, Aida Teagarden's client, Leo, is found dead at his home. Aida had been helping Leo sell his house, but the sale was complicated by the fact that Leo was a con artist with a lot of enemies.
Aurora, her fiancé Nick, and the members of the Real Murders Club are determined to solve Leo's murder. They begin investigating and soon discover that Leo had been planning one last con before he died.
As they dig deeper into Leo's past, they uncover a web of deception and betrayal that leads them to several suspects. But as Aurora and Nick get closer to the truth, they realize that the killer is still out there and could strike again at any moment.
With the clock ticking, Aurora and the Real Murders Club must race to solve the case and bring the killer to justice before it's too late. Along the way, they must navigate the twists and turns of the case, as well as their own personal relationships and conflicts.