The Coroner's office investigates the cause of a devastating fire at a seniors' care facility that left most of the residents dead and an elderly man missing. Arson or accident may have caused the fire but while he investigates with Chief Fire Investigator Henry Whiteside, Da Vinci uncovers evidence of abuse at the home. The harsh realities of caring for the elderly are brought into sharp focus by his own mother's increasing inability to care for his father alone.Mick's partner Kosmo and his brother Danny have struck up a friendship that has the potential for a romance. Danny's club looks like it might get off the ground, although his business partners appear to be mob-connected.