S02E04: 'The Rundown'

A spate of copycat killings targeting make-up saleswomen is feared when a body of a missing woman is found to have a crushed red geranium in her hand. Sam introduces his fellow coppers to the art of surveillance in a bid to discover the killer and avert further deaths, although Gene is slightly bemused. Sam is soon led to infiltrate a swingers party held by a respected businessmen, going undercover with Annie… as Tony and Cherie Blair.