At an open day at their fencing school the Lefevre brothers are accused by Paul Rousillon of stealing his ancestors' swords. The families have been involved in a long-standing feud, not helped by Paul's cousin Marianne's marriage to Jack Lefevre, and Paul is found murdered after fighting a duel with Jack. There are other suspects, including Dolly Hayward, who has reasons for Rousillon not buying her hotel, and Jack's hot-tempered younger brother Alain. Jim catches the killer, getting injured in the process, which at least brings Susan back into his life to console him.
—don @ minifie-1