A little bit early in the series for Flambeau to show up. However he visits Father Brown for his help to catch a thief.
Someone else is getting to the loot before him and Flambeau is not happy. It turns out the rival thief is his estranged daughter Marianne Delacroix.
Marianne proposes a challenge to find out who is the better thief. The loser gives up the life of crime, Father Brown will be the referee and devise the challenges.
It is always a sizzling episode when Flambeau turns up. The twists are piled up and nothing is ever what it seems.
This was not a let down, both Marianne and Flambeau use all their cunning.