“A Stitch in Crime” – Dr. Barry Mayfield (Leonard Nimoy) is a highly successful and respected surgeon, but his methods leave a lot to be desired. A fellow nurse becomes suspicious about his procedures in sewing up internal organs after ‘successful’ operations. The good doctor kills her before she spills the beans, but Mayfield doesn’t count on detective Columbo (Peter Falk) investigative skills which quickly uncovers a trail of murderous events. Episode summary written by Scott Dawson