The Innocence of Father Brown (1911) is the first of five collections of mystery stories by G. K. Chesterton starring an unimposing but surprisingly capable Roman Catholic priest. Father Brown is a short, stumpy Catholic priest, "formerly of Cobhole in Essex, and now working in London," with shapeless clothes and a large umbrella, and uncanny insight into human evil.
Father Brown’s ability to uncover the truth behind the mystery continually surpasses that of the “experts” around him, who are fooled into underestimation by the priest’s unimpressive outward appearance and, often, by their own prejudices about Christianity.