Paul Madriani, the brilliant defense attorney from Compelling Evidence and Prime Witness, is back in a complex web of murder and deceit — this time within his own family. His wife Nikki has just died of cancer. On her deathbed, Nikki made Paul promise to look after her younger sister, Laurel Vega, who is mired in a bitter child-custody battle with her ex-husband, a powerful state senator.

When Jack Vega's new wife is found slain execution-style, Laurel becomes the prime suspect. Paul — remembering his promise to his wife — has no choice but to take Laurel's case. But as he tries to mount a defense and probes deeper into the lives of those involved, he discovers a trail of betrayal and duplicity that hides the truth at every turn.

A gripping drama that spirals toward its shattering conclusion, Undue Influence is a brilliant work from the author hailed by the Los Angeles Times as "the newest superstar among fictionalizing attorneys."