Meeting with Raylan Reeve at his new golf course, Father Brown and Mrs McCarthy discover 'Go Home - or die' burnt into the grass. Inspector Mallory pays a visit to Hermione, who has a clear motive for vandalism after her garden has been compromised for Raylan's extensive golf course, but finds nothing to pin the crime on her. The next day at the golf tournament, the women's cup sees Bunty competing, in disguise as 'Miss Desiree Lecoq', being careful in case her father finds out about this pastime. She competes against Raylan's young granddaughter, Morgana, much to Tamara, Morgana's mother's disapproval. When Bunty's ball lands in the reeds, a body is the last thing she expects to find.