A psychiatrist interviews Gacy; Tovar and Kozenczak uncover systemic failures; teenage love unfolds.
Officers excavate the crawlspace beneath Gacy’s home; Gacy shows where he disposed Rob's body.
Police excavate the crawlspace; media circus begins; two teens navigate boyhood in Uptown.
A blizzard buries Chicago; Kozenczak tracks down Gacy's surviving victims; Kunkle and Kozenczak attempt to break Gacy's accomplice, David Cram.
Returning to the end of episode one, an inebriated Gacy confesses to Sam the ways he groomed, raped, tortured and killed countless boys and young men.
Kunkle and Sam are knee-deep in trial; Tovar drives Gacy; Gacy's past grooming of Cram is revealed.
Jeffrey Rignall's story is told; Gacy's execution day brings protests, reunions and moral debates.