Diagnosis: Murder S2E9 · The Last Laugh (1)

Diagnosis: Murder

Season 2 · Episode 9 · The Last Laugh (1) · 45 min

A plastic surgeon dies due to an overdose of laughing gas... with no shortage of suspects. Mark campaigns furiously to exonerate Bonnie Valin, the victim's wife, while Steve makes a solid case against her. Meanwhile, Amanda's new electronic checking service is less than effective.