Arthur, whose life was devastated by the brutal murder of his wife, must come to terms with his diagnosis of dementia. He moves into a new home at a retirement community, and shortly after, has his life turned upside down again when his wife's ghost visits him and sends him on a quest to find her killer so her spirit can move on. With his family and his doctor concerned that his dementia is advancing, will he be able to solve the murder before his independence is permanently restricted? A Man in Winter examines the horrors of isolation, dementia, loss, and the ghosts that come back to haunt us.