( Thomas Craig ): Oversees the station during the holiday chaos.

(Murdoch Mysteries) Season 15, Episode 6, titled " I Know What You Did Last Autumn ," is a stylized Halloween special that originally aired on October 25, 2021. In this episode, Detective William Murdoch investigates a series of murders involving a killer dressed as a clown who is terrorizing young couples in Toronto. Plot Summary

( Yannick Bisson ): Leads the investigation into the clown killings.

( Shanice Banton ): Provides critical forensic evidence that challenges the survivor's story. Legacy and Follow-up Review: Murdoch Mysteries 'I Know What You Did Last Autumn'

: While Murdoch handles the grim investigation, the rest of the team engages in seasonal festivities. Detective Watts participates in a pumpkin-carving contest at Station House No. 4, proving he is a much better detective than an artist.