Description
Police Sergeant Neil Howie journeys by seaplane to the remote Hebridean island Summerisle to investigate the disappearance of a young girl, Rowan Morrison, about whom he has received an anonymous letter. Howie, a devout Christian, is disturbed to find the Islanders paying homage to the pagan Celtic gods of their ancestors. They copulate openly in the fields, include children as part of the May Day celebrations, teach children of the phallic association of the maypole, and place toads in their mouths to cure sore throats. The Islanders, including Rowan's own mother, appear to be attempting to thwart his investigation by claiming that Rowan never existed.
While staying at the Green Man Inn, Howie notices a series of photographs celebrating the annual harvest, each featuring a young girl as the May Queen. The photograph of the most recent celebration is suspiciously missing; the landlord tells him it was broken. The landlord's beautiful daughter, Willow, attempts to seduce Howie, but despite his inner turmoil he refuses her advances. He enters the local school and enquires about Rowan among the students, but all deny her existence. He checks the school register and finds Rowan's name in it. He questions the schoolteacher and she tells him about her burial plot.
After seeing Rowan's burial plot, Howie meets the island's leader, Lord Summerisle, grandson of a Victorian agronomist, to obtain permission for an exhumation. Summerisle explains that his grandfather developed strains of fruit trees that would prosper in Scotland's climate, and encouraged the belief that old gods would use the new strains to bring prosperity to the island. Over the next several generations, the island's inhabitants fully embraced pagan religion.
Howie finds the missing harvest photograph, showing Rowan standing amidst empty boxes; the harvest had failed. His research reveals that when there is a poor harvest, the islanders make a human sacrifice to ensure that the next harvest will be bountiful. He comes to the conclusion that Rowan is alive and has been chosen for sacrifice. Realising he is out of his depth, Howie returns to his seaplane only to discover it is no longer functional, preventing him from leaving or calling for assistance. Later that day during the May Day celebration, Howie knocks out and ties up the innkeeper so he can steal his costume and mask (that of Punch, the fool) and infiltrate the parade. When it seems the villagers are about to sacrifice Rowan, he cuts her free and flees with her into a cave. Exiting it, they are intercepted by the islanders, to whom Rowan happily returns.
Summerisle tells Howie that Rowan was never the intended sacrifice: Howie himself is. He fits their gods' four requirements: he came of his own free will, has "the power of a king" (by representing the Law), is a virgin, and is a fool. Defiant, Howie loudly warns Summerisle and the islanders that the fruit-tree strains are failing permanently and that the villagers will turn on Summerisle and sacrifice him next summer when the next harvest fails as well; Summerisle angrily insists that the sacrifice of the "willing, king-like, virgin fool" will be accepted and that the next harvest will not fail. The villagers force Howie inside a giant wicker man statue along with various animals, set it ablaze and surround it, singing the Middle English folk song "Sumer Is Icumen In". Inside the wicker man, a terrified Howie recites Psalm 23, and prays to God before cursing the islanders as he and the animals burn to death. The head of the wicker man collapses in flames, revealing the setting sun.
