In the year 1890, a traveling peddler named Jared Garrity, arrives in the little recently renamed town of Happiness, Arizona offering to bring the townsfolk's dead back from Boot Hill. Initially, they don't believe him, but when he appears to resurrect a dead dog struck by a traveler's horse-drawn wagon, they do believe him.

After performing the resurrection ritual, Garrity, in seemingly casual conversation, reminds the people about the dead and departed, almost all of whom were murdered: who died having a score to settle with whom and so forth. The townsfolk grow uncomfortable at the thought of facing problems they thought buried with the dead. When one apparent resurrectee is seen approaching town and is identified to be his brother who shot the man himself, the man bribes Garrity to reverse the ritual and the figure vanishes. Ultimately, everyone in town similarly pays Garrity to not revive their "loved ones."

Later that night, Garrity and his assistant Ace (who was both wagon driver and "resurrectee") ride away with the money, joking about how they cannot actually bring the dead back to life: they had simply performed a few smoke and mirrors tricks to con the townsfolk, and used a dog that was alive the whole time but simply knew how to play dead.

After they have left the town, the last scene reveals that the dead really are rising from the grave, with one commenting that the peddler underestimates his own ability. One revived person is looking forward to getting back into town to get caught up on his drinking. A revived criminal has unfinished business with the sheriff. A woman named Zelda Gooberman plans to break her husband's arm for what she sees in him. As Garrity continues to ride away from Happiness, Arizona, the final shot shows the deserted Boot Hill Cemetery.

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