John Wayne Gacy murdered at least 33 young men between 1972 and 1978, and his horrible story is told in the slightly flashy first episode of a new true-crime series.

The film’s strength lies in the personal angle brought by contributors like Dave Hachmeister and Mike Albrecht, the detectives who caught Gacy, and Tony Antonucci, who worked for Gacy as a teenager and narrowly escaped becoming one of his victims.