In 1976, William Bill Bundy fails to come home after a party; His sister urges Detective Jason Moran to re-open the John Wayne Gacy case to see if the serial killer, popularly known as The Killer Clown has anything to do with Bundy's disappearance.

Missing since 1978, 22-year-old Chicagoan Edward Beaudion's grieving family wonders if he fell victim to the Killer Clown.

Jimmy Haakenson has been missing for the last forty years; As Detective Jason Moran re-opens the case of American serial killer John Wayne Gacy, his grieving family wonders if their missing son was one of Gacy's victims.