When a member of Cho's former gang, the Avon Park Playboys, is found murdered, Patrick Jane insists on helping Cho with his personal, off-the-books investigation.
Poisoning is suspected as the team probes the murder of a male stripper found dead in the wake of a female sex party; a deep sea diver is fatally stabbed while underwater.
Jack's friend disappears after leaving a guilt-ridden message about the murder of his partner earlier that evening.