The husband of aviation engineer Kyle Pratt has just died in Berlin. Now she is flying back to New York with his coffin and their six-year-old daughter Julia. Three hours into the flight Kyle awakens to find that Julia is gone! It's a big double-decker plane, so very concerned mother has a lot of territory to cover in order to find her daughter. But as Kyle fights to discern the truth, she takes matters into her own hands.

While recovering from a tragic accident on the road, the patrolman Edward Malus receives a letter from his former fiancée Willow, who left him years ago without any explanation, telling that her daughter Rowan is missing. Edward travels to the private island of Summerisle, where Willow lives in an odd community that plant fruits, and she reveals that Rowan is actually their daughter. Along his investigation with the hostile and unhelpful dwellers, Edward discloses that the locals are pagans, practicing old rituals to improve their harvest, and Rowan is probably alive and being prepared to be sacrificed. When he locates the girl, he finds also the dark truth about the wicker man.