Unknown Person

When an insidious supernatural force edges its way into a seemingly straightforward investigation into the gruesome murder of a young boy, it leads a seasoned cop and an unorthodox investigator to question everything they believe in.

During the 1980s, a failed stand-up comedian is driven insane and turns to a life of crime and chaos in Gotham City while becoming an infamous psychopathic crime figure.

Dr. Steven Murphy is a renowned cardiovascular surgeon who presides over a spotless household with his wife and two children. Lurking at the margins of his idyllic suburban existence is Martin, a fatherless teen who insinuates himself into the doctor's life in gradually unsettling ways.