In a small desert town during the year 1936, Harold Felch finds himself in a predicament. Harold needs money. Quite a bit of it too. In an attempt to strike it rich, Harold lost everything. To cover his losses, he borrowed money from E.Z., the town’s ruthless loan shark, but that quickly exacerbated his predicament. To make matters worse, Harold is stricken with a curse: doubt. Doubt in himself, doubt in his family and doubt in the prophetic ten-year-old preacher at his church, the one called Pastor Salver. The boy preacher had received visions of a great flood, which he, in turn, brought to his congregation. An ark would be their salvation. The congregation joyfully shouted, "Hallelujah!" Harold would have rejoiced too, were it not for his doubt about Salver's intentions. The more Harold tries to get out of his mess, the more mess he makes. And his doubt about everything spins into outright madness. This leads Harold into an even messier mess, as he becomes a bungling detective in an effort to get to the bottom of Pastor Salver’s prophecy while evading E.Z.’s vengeful wrath.