Tormented daily by visions of his recently deceased mother, Peter seeks help through therapy to overcome his mourning. Answers come when a cardinal strikes his bedroom window one morning, leading Peter to believe that these are more than just ghostly apparitions. As he believes that his mother is sending him a message from beyond the grave--violent urges within him are awakened, and his obsession for a young woman grows. Cardinal is the story of how one man’s grief births a killer.