A teenager, Ronald, unintentionally causes the death of a young girl on a beach. So that the police do not find him, his mother locks him in a cubicle, under the stairs of the house. On her death, the house was rented to an English family.
When awkward teen Ronald Wilby accidentally kills a young girl whose sister rejected his affections, his overbearing mother decides to hide him from the law by creating a concealed room in their home for him to live.
