Whodunnit?Season 11973 · 6 episodesEpisodes1Missing on VoyageThe case this week involves a creaking door, a murder and a phial of poison.2Knife in the BackThis week's episode features a ghostly house on a remote Scottish island and a death amongst the week-end guests.3Crime After a FashionThis edition features the murder of a model during a fashion show.4Did He Fall or Was He Pushed?The managing director of a plastics firm if found dead at the foot of a three storey building.5Dead LikenessThis week's case involves identical twins.6Happy New YearThis episode features a murder that takes place just as the last few minutes of 1899 go by.Season 2Season 3Season 4Season 5Season 6