Joan Robinson Hill's mysterious death left her wealthy father Ash Robinson desperate for justice. Wenndy and Carter investigate Ash's theory that his philandering son-in-law, John Hill, killed Ash's beloved daughter. Was Ash Robinson hounding an innocent widower, or was he on the trail of a callous killer? And who was really behind Joan’s husband’s murder a mere couple weeks before his trial? Was Ash’s burning desire to avenge his daughter’s death enough to drive him to kill?