Honeymoon

The newlywed Bea and Paul travel to a remote cottage in the woods that belongs to her family for their honeymoon. They are happy and feeling deep love for each other. They decide to have lunch at a rustic restaurant where Bea meets her childhood friend Will, who owns the restaurant and has a strange behavior. He tells that he got married to Annie and asks them to leave since the restaurant is closed. During the night, the house searched by a light and soon Bea vanishes. Paul finds her naked and wandering in the woods and she claims that she is sleepwalker. Paul suspects that she had encountered Will while Bea changes her behavior. What might have happen to Bea?