Anyway, just to make my life easy for five minutes, I'm going to show you a movie. For free.
If you've never heard of GK Chesterton's Father Brown ... have you been living under a rock? Before there was Father Dowling (and you've at least heard of that one, haven't you?) there was Father Brown, created by Chesterton out of thin air.
While there have been some attempts at Father Brown (the most recent evoking the most homicidal reaction from me), this is probably the best. Not because of the accuracy of the scripts to the stories (for that you want the Father Brown as done by Kenneth More) but because of the best execution of character, done by Alec Guiness.
And it's for free on YouTube.