S1·E26 Final Curtain

Mike's girlfriend, Jackie, a dancer in a chorus line, panics when a sleazy reporter points out the similarities between a pair of chorus line murders and the Jack the Ripper killings 70 years ago - both of the murdered girls were redheads and Jackie is the only redhead left in the troupe. Mike has two suspects - a doorman who hates actresses and the reporter who may be making the news instead of simply reporting it.