This is a screwy one. Sinners poses as a vigilante flick, but it focuses mostly on the lives of a cousin and two brothers. Al is a priest with a thing for a prostitute. Gino is hot tempered with a thing for their sister. Nino is a ladies man with a thing for their sister (his cousin), too. And, yes, they all moonlight as vigilantes, ridding the streets of pushers and thieves. It's screwy because it's a comedy.
Don't expect an action film. It's definitely not that. But you'd be forgiven after looking at that cover.