Shirley once again helps Professor Cabot, whose research into human sexual behavior gets him into trouble when he's caught with a prostitute. Marlene and Denise continue their fight for the spot to become partner by trying to assist.Meanwhile, Denny takes Alan to LA when he pays a visit to the West Coast branch of Crane, Poole & Schmidt, but his motives become clear once Alan meets Barry Goal. And Brad is shocked to discover his niece is arrested for participating in a drug "pharming" party.