Martin McDonagh's latest is sad, hilarious, tragic, and true. Or feels like it could be true, even if some of the decisions characters make are baffling, to say nothing of gruesome.

On a rugged, beautiful island off the coast of Ireland in 1923, with the civil war going on on the mainland, two friends fall out. Or rather, one says he doesn't like the other any more. A whole sequence of events flow out from this simple, almost child-like choice.

The funniest part happens when one of them goes to confession.But that's only to be expected: confession's a pretty funny kind of thing, when you think about it.

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