A skeleton from a seven-year-old murder case is found buried in the woods, bringing doubts on the conviction of the confessed killer. Inspector Mallory and Father Brown reinvestigate the murder. Sid Carter brings letters for Father Brown and Bunty as well as a Christmas present for Mrs McCarthy. Father Brown, Mrs McCarthy, and Bunty audition for the local amateur pantomime, Cinderella, but do not get the roles expected. Sid is recruited to partner Father Brown; Mallory and Sergeant Goodfellow also get roles as the ugly sisters. When an accident happens during rehearsals, Father Brown realizes the truth lies within the theatre.
Father Brown Season 6: The Tree of Truth, Sunday at 7 p.m. on PBS 6.