When a police officer with a gunshot wound to the head and uncontrollable laughter is admitted, House and the team are baffled. When Foreman begins showing the same symptoms, they race to determine the cause of the illness before Foreman's condition takes the same path.
Elenco: Hugh Laurie , Jesse Spencer , Omar Epps , Robert Sean Leonard , Peter Jacobson , Olivia Wilde , Odette Annable , Charlyne Yi , Anne Dudek , Kal Penn , Jennifer Crystal Foley , Bobbin Bergstrom , Sela Ward , Meaghan Martin , Michelle Trachtenberg , Odette Annable , Olivia Wilde , Peter Jacobson .