Nothing ever happens in August, so Kate goes off on a long-overdue holiday to Whitby to visit her friend Alma who works there as a fortune teller. She's been looking forward to a relaxing seaside sojourn, but, upon arrival, she discovers that Alma's daughter, Felicity, has disappeared, leaving her mother a note and the pawn ticket for their only asset: a watch-guard. What makes this more intriguing is that the jeweler who advanced Felicity the thirty shillings is Jack Phillips, Alma's current gentleman friend. Kate can't help but become involved, so she goes to the jeweller's shop to get some answers. While there, she makes a horrifying discovery in the back room, and it becomes clear that her services are needed. But she's met by a wall of silence by town officials, who are keen to maintain Whitby's idyllic facade, so it's up to Kate-ably assisted by Jim Sykes and Mrs. Sugden-to discover the truth behind Felicity's disappearance. And they say nothing ever happens in August...