In Ghost in the Wall, a young mother fears that her father-in-law has returned from the dead, with a horrific plan to steal her children. Jason and Sam are teenage sweethearts. Jason's dad Jimmy doesn't approve of the relationship. Jimmy is desperate for grandchildren. Before Sam can make her peace with Jimmy, he dies suddenly of a heart attack. Soon, Jason's dreams are plagued by visions of demonic figures. The couple are overjoyed to start a family but sorry that Jimmy isn't around to see. Or is he? When one of her children is seriously ill in hospital, Sam becomes convinced that Jimmy has come to take her children, intruding on their lives in more and more sinister ways. Sam realises she must fight to protect her children from the ghost of their grandfather.