At age twenty, Leena O'Neil walked away from her old life. Anything to avoid becoming a lawyer like her mother and older sister, Georgia. Three years later, Georgia contacts her, convinced that her husband is trying to kill her rather than divorce her. Reluctantly, Leena agrees to help. But the stakes go up when Georgia’s husband, Mark, is murdered. Now she wonders if the person who killed Mark is out to get Georgia as well. Armed with several online courses in criminology and investigative strategies, Leena considers herself "almost a private investigator" and she sets out to uncover the truth.

Disappearing Act is the first in a series of mysteries featuring rookie private investigator Leena O'Neil.