Six Letters Beginning with M (S01E09)

S01E01 Watercolour Crime S01E02 Patently Murder S01E03 The Jury's Out S01E04 Derby Day Death S01E05 Deerly Departed S01E06 Cops and Robbers S01E07 The Uninvited Guest S01E08 Finders Keepers S01E09 Six Letters Beginning with M S01E10 The Pigeon S01E11 School's Out for Murder S01E12 The High Class Killer S01E13 Driving Miss Mortcliff S01E14 Tell Tale Signs S01E15 A Can of Worms S01E16 Appetite for Murder S01E17 What Became of Miranda? S01E18 White Collar Crime S01E19 Am Dram Damned S01E20 Mistletoe and Crime