Members of the Osage tribe in the United States are murdered under mysterious circumstances in the 1920s, sparking a major F.B.I. investigation involving J. Edgar Hoover.

Just weeks before the deadline for his latest commission, a composer has lost the creative spark that brought him international acclaim. At the urging of his ever-patient wife he searches for inspiration on the Brooklyn waterfront and finds it in a thrill-seeking tugboat captain who soon has Steven questioning everything in his life.

High school student Sadie Harper and her younger sister Sawyer are reeling from the recent death of their mother and aren’t getting much support from their father, Will, a therapist who is dealing with his own pain. When a desperate patient unexpectedly shows up at their home seeking help, he leaves behind a terrifying supernatural entity that preys on families and feeds on the suffering of its victims.